I know a=pi*r^2 anyways, the triangle is:4*8/2=16 The semicircle is: 4pi because 4 is diameter, /2 then square u still get 4. 4*3.14 = 12.56 12.56 + 16 = 28.56.
53 times .07 is 3.71
53 times .15 is 7.95
You add those and get $64.66.
B = 18 because 67 - 49 = -18
-18 =-b
Divide by negative 1 because you can't have a negative variable in your answer.
1.
g(x) = 3 - x^2
g(-2) = 3 - (-2)^2 = 3 - 4 = -1
f(x) = 5x + 4
g(g(-2)) = f(-1) = 5(-1) + 4 = -1
2.
f(x) = 5x + 4
f(-2) = 5(-2) + 4 = -10 + 4 = -6
g(x) = 3 - x^2
g(f(-2)) = g(-6) = 3 - (-6)^2 = 3 - 36 = -33
Alright, lets get started.
Given information : Irene writes the check of 200 $ . It means the amount is deducted form here account.
Irene deposited 125 $ in her account. Means this amount is added in her account.
Suppose her initial amount in account was x $.
When she writes the check of 200 $, the amount is deducted so new balance is (x - 200) .
When she deposit amount 125 $, it means , the new balance of her account will be: 
Which shows her account is 75 $ less than her previous balance.
Hope it will help :)