You have a piggy bank containing a total of 101 coins in dimes and quarters. If the piggy bank contains $17.90, how many dimes are there in the piggy bank?

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.

If 25% of y is 30, what is 60% of y?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).