At the market 5 light bulbs cost $9. How much do 7 cost

Plzzz asap what is the inverse of f if f(x)=^3 sqrt x-5

You purchased 8 pounds 10 ounces of candy from a candy shop. you want to split it equally among 3 classrooms at a local school.

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.