Answer:
720
Step-by-step explanation:
50/8=6.25
4,500/6.25=720
I think you mean,

You can use the usual formula,

That in this case is,

Where I have used,
Change 0.7 to 7/10 and 4 to 1/4,so it'll be 7/10x1/4, then find least common denominator, 40.change fractions to 28/40x10/40=280/40=70
Answer:
10.5
Step-by-step explanation: