F(x) = 20x+300
you sub in the x values (120 hours and 100 hours) for each equation
the only one they both work for is the last one
f(x) = 20x + 300
f(100) = (20 * 100) + 300 = 2000 + 300 = 2300
f(120) = (20 * 120) + 300 = 2400 + 300 = 2700
Answer:
im pretty sure that it is -48 there is a chance im wrong
Step-by-step explanation:
.
Answer:
14.7%
Step-by-step explanation:
GIVEN: Felicia bought a jackhammer priced at
. The total price, including sales tax, was
.
TO FIND: What was the sales tax percentage.
SOLUTION:
Price of jackhammer 
Total price including sales tax 
Total sales tax on jackhammer 
Total sales tax percentage 
Hence the total sales tax percentage on jackhammer is 14.7%
Answer:
The answer is C) 4x + 8y +27.