Solve for x: 81=-6.8x+130.18

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120