1/8
hopefully this is helpful
Answer:
D
Step-by-step explanation:
24-4m=42m-24+2
24+24-2=42m+4m
46=46m
m=1

Convert decimals to fractions

Multiply both sides by 10

Move expression to the left.

Remove zero.

Solve the quadratic equation.

Remove parenthesis and calculate.

Add the numbers

Separate the solutions

The final solution are
Answer:
if his car-wash job gives him $400 then he should only work 8 hours walking dogs to reach 520. Though it says to earn 'more than $520' so maybe 9hrs?
Step-by-step explanation:
He already has $400, which leave $120. 120 divided by 15 equals 8.