4^-1+2^-3

simplify!

The result of a number when decreased by 20% is 192. Find this number

Solve for x in the equation x/2 = 17.

Sandra makes and sells bracelets. It costs her $2 to make each bracelet, plus a one-time cost of $15 for supplies. She plans to sell each bracelet for $5. Let x represent the number of bracelets.

Erica needs 5 and one half gallons of paint to paint the house. She has 3 and one half gallons at school, and a friend can give her another 1 and three fourths gallons. How much more paint does she need?

The length of a rectangle is 3.5 inches more than its width. The perimeter of the rectangle is 31 inches. Find the length and the width of the rectangle.

Your school raised 125% of it's fundraising goal. The school raised $6750 what was the goal?

Evaluate. -0.2916 : (-2.7)

Find the missing dimension of the cone. Volume = 1959.36 Diameter = 12 Height = ?

75% of the students who bought lunch yesterday ate chicken patties. If 120 students ate chicken patties, what was the total number of students who bought lunch?

Which of the following is a geometric series? A. 40 + 50 + 60 + 70 B. 40 + 42 + 44 + 46 C. 40 + 80 + 40 + 120 D. 40 + 20 + 10 + 5