Answer:
2x^2+7
Step-by-step explanation:
Let x=5
2x^2+7
2 ( 5)^2 +7 = 2*25 +7 = 50+7 = 57
(x^3-5)/3
(5^3 -5)/3 = (125-5)/3 = 120/3 = 40
(10x -2)/ (x-3)
(10*5-2)/(5-3) = (50-2)/(2) = 48/2 = 24
Answer:
C
Step-by-step explanation:
(a) if you buy one item at price p, the tax on this purchase will be 0.085p.
Thus, the total cost of this one item would be 1.085p.
If the price were $3.50, the total paid by the customer would be 1.085($3.50).
Multiply this out by hand or on your calculator.