hazel is saving to buy a 400$ bike. She saves each week from her babysitting money. What linear equation represents the amount hazel still has to save after x weeks

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.

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1