Yes, you are correct to use proportions because they are similar triangles.
36 × 0.07 = $2.52 sales tax
Answer:
the 1st one
Step-by-step explanation:
80%=.8, .8*685=548. This is the simple math that you need. For the percentages, move the decimal place two places to the left and then multiply by the number that you want to get the percentage of.