Question

Ms. Jackson is buying scientific calculators for her math class.

She tells the principal that a classroom set of 30 calculators would
cost $388.50. The principal wants to know the cost of purchasing
calculators for the entire school. How much would it cost to buy 300
calculators?

Answer 1

Because 300/30= 10 you can multiply 388.50$ by 10 in order to get an answer of 3885$