Answer:
6 hours
Step-by-step explanation:
because if they work together it will be 9 hours slower than Kelsey's time alone.
not sure if correct
I don't know if you are asking for an equation but if you are, here ya go.
P = $3.95 + $0.85t
(90*.06)(this is the percentage converted to a decimal) this should equal the amount of tax that Ben will pay.
So the answer would be
90*6%
