List the next four multiples of the unit fraction 1/5,

Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coop?

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared