(42-33)-(-7+12) whats the answer

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

What’s -11-33k and factor each expression completely