What is the simplified expression for

3a2+9ab+5-4a2-4ab+3?

a) -a2+5ab+8

b) -a2-13ab+5+3

c) a2+5ab+8

d) a2-13ab+5+3

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