Sales tax on a shirt is 0.07 times the cost of the shirt. the sales tax for a shirt is $1.26. which equation could you use to find the cost, c, of the shirt before sales tax?
0.07 • c = 1.26
0.07 • 1.26 = c
0.07 ÷ c = 1.26
0.07 ÷ 1.26 = c

First option.

Step-by-step explanation:

According to the explained in the exercise, "c" represents the cost of the shirt before sales tax.

You know that the tax on the shirt is 0.07 times its cost. This indicates a multiplication.

Then, that the sales tax is the product of 0.07 and "c":

Knowing that the sales tax for a shirt is $1.26, you can substitute this value into in order to find the equation that could be used to find the cost of the shirt before sales tax.

Then, this is:

so, converting firstly the mixed fractions to improper fractions and then "adding".