Atriangular sail has a base length of 2.5 meters the area of the cell is 3.75 square meters how tall is a sail

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.

Add the fractions and simplify 1/2+ 1/3

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.