Estimate wheather each sum or dsifference is reasonable. if it is not reasonable, estimate the sum or difference 1/5 + 5/8 is about 3/4

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.

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)