You are the treasurer for a local charity. at the beginning of the month the balance was $820.64. the charity received donations of $500.00, $55.00 and $25.00. you have an electric bill of $40.64, bill for postage of $12.75, and rent for $445.00.

Erik buys 2.5 pounds of cashews. if each pound of cashews costs $7.70, how much will he pay for the cashews?

What is the slope of the line that contains the points (-5, 6) and (14. - 7)?

Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?