A river tubing company rents tubes to go down the river. A one-person tube rents for $20 and a tube that holds a cooler rent for $12.50. A group spends $270 to rent a total of 15 tubes. How many tubes of each kind did they rent?

Part a: select all of the ordered pairs that are located on the graph of the equation. part b: does the graph of the equation represent a function? select all correct answers for part a and one answer for part b.

Use the graph of the sine function y=2sinθ shown below

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer