B. slope is -1/2
This is because the m-value aka the slope is always the reciprocal if the line is perpendicular
6.11 miles is Emily’s Distance amount
Answer: 117.5
Explanation: Assuming that after 10 years the lawn mower would have a value of 0. We can evenly divide $470 by the amount of years.
$750/10 = $75
We would then multiply 75*7.5 years to then realize the value lost over that amount of time would be $352.5, subtracting that from the original value of $470 would then be 117.5
0.04 is 1/10 of 0.4
0.4 x 0.10 = 0.04
hope this helps