Philip borrowed $50 from his parents. He paid $20 back to his parents at the end of the week and agreed to pay back $4 each week thereafter. The function f(x) = 4x + 20
models the total amount of money Philip has paid back his parents x weeks after he paid
back the initial $20. How much money does Philip still owe his parents after 3 weeks?

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.

If 3 3/4 lb. of candy costs 20.25 how much would 1lb. of candy cost