Answer:
The area of the black square is equal to the sum of the areas of the gray squares.
Step B would be correct because you trying to find the total number of hours she reads in 8 days and not the difference. <span />
3.50m+75 for the 30 miles, he is being paid 105 plus the daily amount of 75 which equals to 180$.
Ok, so for this you're likely graphing in y=mx+b format (slope intercept). So to start, you'all first subtract 3x from the equation to get 6y=-3x+16. Now you'll divide the equation by 6 to get y alone. Your final equation will be y=-1/2x+16/6
Variable: $175=P $40=L $375=TB
x=TB-P/L
Equation: $375-$175/$40=5
This means that the amount of hours you paid for is 5 hours.