Answer:
D-70
Step-by-step explanation:
It is a combination C(8,4)
The answer is $10 because 123=$6 and 4 hours is =$4 6+4=10
Step-by-step explanation:
Using log properties


Then

Plug in the knowns


Answer: 
PLEASE MARK ME BRAINLIEST
Step-by-step explanation:
1) Simplify both sides of the inequality:

2) Subtract
from both sides:

3) Simplify:

4) Subtract
from both sides:

5) Simplify:

6) Divide both sides by
:

7) Simplify:

Let the variable for total cost be c and person be p
c = 5x + 5x