Answer:
t = 0.06c
Step-by-step explanation:
Given the following :
Percentage sales tax on items = 6%
Cost of item = c
Amount of sales tax on item = t
Amount of sales tax is the product of the sales tax percentage and the cost of item purchased
Hence, Amount of sales tax;
t = 6% × cost of item (c)
t = 0.06 × c
D. 80
multiply 40 by 2 cause its 50 percent
No
Assuming that you put the wrong sign for the second equation if you plug (2,7) into the two equations it only works for one equation.