"what number" – represent with a variable "is" – means "equal to" "of" – means to multiply percent – means some part out of 100 "what percent" – represent with x/100 remember to change percents to decimals

Use the hints in Part A to write an algebraic equation. Solve for the variable.

Find the price difference on the item. Divide the difference by the wholesale cost. Change the decimal to a percent.

(Area of the shaded region) / (Area of the total region) After performing the division, change the decimal to a percent.