Answer:1
Step-by-step explanation:
Answer:
A,C,D
...............................
C
180-130 = 50
50 + 80 + x = 180
80 + x = 180 -50
80 + x = 130
let x = the number
7x - 6 =85
add 6 to each side
7x =91
divide each side by 7
x = 91 /7 = 13
Answer is B 13
