A ski store has 60 different boots available, 30 different pairs of skis, and 40 different hats. If a customer were to only buy ONE item, how many different ways can a customer purchase an item from the store?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?

Item 1 which question could the expression 1000n answer? let n = the number of gallons of gas used. how many miles per gallon did the car get driving 1000 miles? let n = the number of grams of food needed for each dog. how many grams of food are needed to feed 1000 dogs? let n = the number of people at the show. how many empty seats were there at the show if there are 1000 seats at the theater? let n = the number of seats at the theater. how many empty seats will there by if 1000 people come to the show?