39=9x+7-3x+20
Subtract 27 from each side
12=6x
2=x
Now plug in 2 for x to find AB and BC
9x+7= AB
9(2)+7=AB
18+7= AB
25= AB
-3x+20= BC
-3(2)+20= BC
-6+20= BC
14= BC
Answer:
D, 30%
Step-by-step explanation:
you move the decimal point twice to the right
C.) 30 since they both have 5's just take them out then subtract 50 and 20 *but make sure u take out the decimal though* so after u subtract u will get 30 then line it up and put the decimal back then it will be .30
First box: 7 to the power of 2
second box: 7
third box: 7 to the power of four
first box: m to the power of 2
second box: m to the power of 5
