Simplify the polynomial. a. 18a+(a–9)^2

a² + 81 is your answer

Step-by-step explanation:

First, expand the power:

(a - 9)² = (a - 9)(a  - 9)

Use the FOIL method.

(a)(a) = a²

(a)(-9) = -9a

(-9)(a) = -9a

(-9)(-9) = 81

Combine like terms: a² - 9a - 9a + 81

a² (- 9a - 9a) + 81

a² - 18a + 81

Simplify. Combine like terms:

18a + a² - 18a + 81

a² + (18a - 18a) + 81

a² + 81

a² + 81 is your answer

~

stew reads at the fastest rate of 265 words per minute.

step-by-step explanation:

it's a given that felicia reads at 260 word per minute and on connie's graph we can see that she reads 200 words per minute. since stew's table tells us that he read 795 in 3 minutes, we can divide 795 by 3 to find out how many words he reads per minute.

795/3 = 265

stew reads 265 words per minute - he reads at the fastest rate since felecia reads at 260 words per minute and connie reads at 200 words per minute.

stew (265) > felecia (260) > connie (200)

the two may have that, even a breakdown is probably offered