Answer:
21
Step-by-step explanation:
2:7 Ratio
Since he got 6 wrong it 6:?
6/2 = 3
3*7=21
6:21
He got 21 right
Answer: I'm pretty sure it's 200x - 120x = 1,200
2 74/100
3/6=k/7
cross multiply then
6k=21
divide by the coefficient of k
k=3.5
hope helpful~