Question

Write a proportion for the following problem: The tax on a book costing $46 is $5. At the same tax rate, what is the tax on a book costing $72?

Answer 1

46/72 = 5/?

Answer 2

5/46 = x/72

x= 72*5/46 = 7.83

tax: 7.83$

Answer 3

46/5 = x/72

5/x = 72/46

46/5 = 72/x

72/46 = x/5
these are my answers?

Answer 4

46/5 = 72/x