Answer:
$5.71
Step-by-step explanation:
40 divided by 7 equals 5.71428571, which should be rounded to 5.71.
the slope that is perpendicular to line y=-7x-12 is 1/7
1/7 is the perpendicular slope
7/6
7/3÷4/5
7/3×5/4
35/12
Now the multiplication
2/5×35/12
70/60
Answer: answer is c.