Answer:
21
Step-by-step explanation:
Answer:
The answer would be B)
Step-by-step explanation:
An equivalent ratio would be 7:10 or 70:100 or 42:60 and so on...
X-7=13
move -7 to the right side of the equation, change the sign from negative to positive when you move it
x-7+7=13+7
x=13+7
x=20
