Afirst-class postage stamp was $0.02 in 1885. the same first-class postage stamp in 2006 was 39¢. what is the percent of increase in the cost of a first-class postage stamp?

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30

Agallon of apple juice cost $7 a pack of eight 4.23oz box of apple juice $2.39 which is a better deal