Rick wants to go to a concert that cost 48.50. he also wants to bring 20 dollar for spending money. he has 11.75 dollars and charges 9 dollar to shovel snow from a driveway.

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?

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]