А.
12b - 8
>B
9b + 8
12b - 8
C

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

b i think

step-by-step explanation:

not really sure

x = 12

y = 1

for the points!