If he charges $145 he worked for 5 hours at $20 an hour
Let gradient of original line = m = 1/6
Gradient of line perpendicular to this = -1/m = -6
(Gradient = slope)
Answer:
Sorry I can't because i don't know this : (
Step-by-step explanation:
Area = length x width
21 = length x 5
length = 21/5 = 4.2
The length is inversely proportional to the width because as the length increases the width reduces and vice-versa
