L=6 units
W=6 units
H=6units
Answer: a) 10!/7!
<u>Step-by-step explanation:</u>
The "quick" way of answering this is: 10 × 9 × 8 = 720
If you are using the formula then you get:

The answer is C
Since we don’t know how much supplies cost in general it would be better to first find out how much the painter charges for the 5 hours
15.28 x 5 = 76.45$
Now that we know that we just need to solve for the difference. So subtract the total cost to the amount he charged for 5 hours of work
157.18 - 76.45 = 80.73
Answer:
4
Step-by-step explanation:

(x is input, t is time, r is rate of change)