His mistake was on step 1
1/5 of 80 =16
16x4=64
this means he needs 16 more dollars
16/7.75=2.06451612903
this means that he has to work for two more hours.
hope this helps :)
Simple...
since this is a parabola...the equation is..
y=2x+1
Thus, your answer.
Answer:
Here I have uploaded the file with the answers
Step-by-step explanation:
A. They are symmetric about y=x