PLZ HELPPP a^2+b^2=c^2 i have the photo attached below and if you know this do you think you could help me with the rest of them as well? I have to answer 5 questions..

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

At a book fair, joe bought 24 books at 3 for $5 and had $2 left. how much money did he have at first?

You have 37 coins that are nickels, dimes, and pennies. the total value of the coins is $1.55. there are twice as many pennies as dimes. find the number of each type of coin in the bank.