Two letters from the word HAPPY are randomly chosen with replacement. What is the probability of choosing an H or P on either selection?

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?

Aparking garage charges $1.12 for the first hour and 0.50 for each additional hour. what is the maximum length of time tom can park in the garage if we wishes to play no more than $5.62

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer