Expand or factor each of the following expressions to determine which expressions are equivalent.
(3x + 2)(9x^2 - 6x + 4)
(31 - 4y)²
9.2 - 24y + 1672
(3x + 5)(3x – 4)
(3x - 2)(9x2 + 6x + 4)
273 - 8
9r2 + 3.r - 20
(4x – 3y)²

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94

step-by-step explanation:

one day the were 5 ducks, and their king told them to multiply their kingdom. so each went their own seperate way and met 4 other ducks on their journey.

when the ducks returned to their kingdom, it was discovered that there were 5 groups of 5 ducks. when the kind counted the number of ducks in total (including the ones he sent out earlier) he counted 25.

therefore 5 times 5 is 25.

the end. : )