Answer:
A.
Step-by-step explanation:
if they are similar then you can set up a proportion to solve.
5/x = 7/4
cross multiple to get 20=7x
x=20/7
There would be 60 pages in the book totally because you would set 40/x=2/3 and solve for x.
40/x=2/3
2x=120
x=60
I don’t really understand this but here my place value charts
Answer:
x is 54
Step-by-step explanation:
90-36=54