Correctly identify the property shown. (−5.2+(−8.4))+(−2.8)=−(5.2+8.4)+(−2 .8) (a.) associative property (b.) commutative property (c.) opposite of a sum property

What is the product? (x2+3y+7) [yy+1)

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.