Seventy is 60% of what number?

The number is 116.6666667 which can be expressed as 

Explanation:
Assume that the number we are looking for is x.
We are given that 60% of x is equal to 70.

This means that:
60% of x = 70
60% * x = 70
0.6x = 70

We will simply solve for x as follows:
0.6x = 70
x = 
x = 116.6666667 which can be expressed as 

Hope this heps :)

Ican't do any of the other stuff, but i can get you started. the answer, i believe, is $2.50.