Explain how to use properties to prove d + (8d + 1) + 7 is equivalent to 8 + 9d.

Anew landowner is interested in constructing a fence around the perimeter of her property. her property is 1,080√30 feet wide and 500√20 feet long. what is the perimeter of the property? (recall that the perimeter is the sum of each side of a shape or boundary). a 1,580√40 feet b. 5,320√5 feet c. 3,160√20 feet d. 10,640√5 feet

What is the surface area of the sphere?

Caitlin had 402. in her bank account.she withdrew $15.each week to pay for swimming lesson. she now has $237.