A school paid $31.25 for each calculator. If the school bought x calculators, how much did they pay?

31.25×

Step-by-step explanation:

suppose that the value of x was 3 . that would mean that they bought 3 calculators .

if one calculator is $31.25 then 3 would be $31.25× 3

the same rule would apply for x

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

ratio is 2 : 9

the answer is three

13.5 : 3