Show how you estimate 458/31

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Write an expression that represent sarah’s total pay last week. represent her hourly wage with w monday 5 tuesday 3 wednesday 0 noah hours wednesday 8 only with w wage did noah and sarah earn the same amount last week?

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air