7.What is the main function of the heart?
to exchange gases
to remove waste materials from the body
to produce red blood cells
to move blood through the body

There were 60 people on bus. 40% were female. How many people were females and how many were males? IS THIS A LINEAR FUNCTION? YES OR NO Answer. it fast please que significa conclucion Has anyone done this Sexual vs Asexual Reproduction before? What is 8/x^2 + 6x 2x ? Three fifths of the students in the cafeteria bought their lunch from the school. The rest brought their lunch from home. 27 of the students bought their lunch. Let t represent the total number of students in the cafeteria. Write the sum 3+57+911+1315+1719+21 using sigma notation. The form of your answer will depend on your choice of the lower limit of summation. John wants to gain weight for his wrestling team so he can compete in a different weight class. He currently weighs 187 pounds, and is gaining weight at a rate of 1.5 pounds per week. Which equation below models this situation * number of weeks y = total weight (pounds ) Jessica is selling books during the summer to earn money for college. Sheearns a commission on each sale but has to pay for her own expenses.After a month of driving from neighborhood to neighborhood and walkingdoor-to-door, she figures out that her weekly earnings are approximately alinear function of the number of doors she knocks on.She writes the equation of the function like this: E(X) = 10x - 30, where x is thenumber of doors she knocks on during the week and E(x) is her earnings forthe week in dollars.Which of the following are reasonable interpretations of the y-intercept ofJessica's function?Check all that apply.A. She can earn $10 per week even if she does not knock on anydoors.B. She will lose $10 per week if she does not knock on any doors.C. If she does not knock on any doors at all during the week, she willlose $30.D. Her expenses are $30 per week. identify the transformation shown by the two lines on the graph as a dilation or translation.a) translation b) dilation If there are two boys to every three girls, what percent of the class is girls? which point 1 on the number line? 01/6ABCDChoose 1 answer ABCD Convert the expression (5)(5) to exponential form. Show your work If you rescue a snake and give them a home in your house will that cause them to not shed? And why!! Very important. Will mark brainless!!! what is the ratio of 60 and 12 1 to 5,1 to 4, 4 to 1,or 5 to 1 find x please hurry hurry hurry hurry hurry hurry hurry HELP PLEASE!! Brainliest to whoever gets it right. On a Math test, a student got 25 questions correct but did not pass. On a second attempt, the student got 36 questions correct. What was the percent of increase? how could you use Newton's Second Law to study forces?