Answer correctly for brainliest

f(x) = x^2 + 2x + 1

To find f(-7), all we need to do is plug in -7 everywhere there is an x. Then, we simplify to find our numeric answer.

f(-7) = (-7)^2 + 2(-7) + 1

= 49 - 14 + 1

= 35 + 1

= 36

f(-7) = 36

Hope this helps!! :)

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

answer: when you burn wood, the carbon reacts with the oxygen in the air to create ash and smoke. that is a permanent change you cannot undo that.

step-by-step explanation: