Which of the following is equal to (1/a+a)^2 - (1/a-a)^2 ? A) 0
B) 4
C) 1/a^2 - a^2
D) 2/a^2 - 2a^2
E) 1/a^2 - 4-a^2

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

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the plzzz write a proportion i will give you 100 points