Ineed with this problem : -7x^2-2y^3+3x^2-2y^3

What is the value of the expression below? (81^2)^1/8

What is the perimeter of an isosceles triangle with each leg measuring 2x+3 and the base measuring 6x-2?

The graph below shows the line of best fit for data collected on the number of cell phones and cell phone cases sold at a local electronics store on twelve different days. number of cell phone cases sold 50 * 0 5 10 15 20 25 30 35 40 45 number of cell phones sold which of the following is the equation for the line of best fit? a. y = 0.8x b. y = 0.2x c. y=0.5x d. y = 0.25x