Evaluate this expression if r = 2, t = -7, and u = -5
3(r+u)

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 - We do this since it gives us the missing variables, which makes it so we can solve it like any regular equation.

Equation at the end of Step 1:

 - We do this because we need 1 number, not 2 at the end.

Equation at the end of Step 2:

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inequality:

620-37.4p ≥ 450

the minimum amount of packages needed to be removed from the elevator is 5.

step-by-step explanation:

answer: 59

step-by-step explanation: