If x + 1/x = 5 what is x^3 + 1/x^3

What number am I? My tens digit is double my ones digit. I am less than 70 and greater than 60

How many dollars are in 3000 pennies

What is the formula for the sum of interior angles of a regular polygon?

Two lines in a linear system have the same slope, but different y-intercepts. how many solutions does the linear system have

Solve the equation - 5m = - 20

A seagull flies 50 feet above sea level. A dolphin swims 20 feet below sea level. Which animal is closes to sea level?

The area of each face of cube is 25 CM square find its total surface area

Use proportion to convert 6 quarts to gallons

a circular window with a circumference of 10 feet is to be placed into a wall at a new home. The builder cuts a hole for the window and says that it has an area of at least 8 square feet. explain why she is right or wrong. Show work.

A 4 pack of dinner rolls cost $2.20. A lack of dinner rolls cost $5.40. Which is the better buy