Question

A store bought a salt shaker at a cost of $1.60 and marked it up 100%. Edgar bought it and paid 10% sales tax. What was his total cost?

Answer 1

For this case we know that the original cost is 1.60$ and that represent the 100%

And the taxes are 10%

so then the total cost is:

C = 1.1* 1.60 = 1.76$