Help I don’t know how to solve this one

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?

Find the area of an equilateral triangle with a side of 6 inches

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4