Write a multiplication and division statement for: 8 students in Ms Garcia’s are doing biology science fair projects. That’s 4/5 as many as are doing physics projects. How many students are doing physics projects? (PLS ANSWER WILL GIVE BRAINLIEST)

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?