where's the rest of question so I can help?
Answer:
<em>Rachel will earn $85 in 10 hours.</em>
Step-by-step explanation:
Rachel earned $34 in 4 hours at her job today.
Suppose, she will earn
dollar in 10 hours tomorrow.
So, <u>according to ratio of 'dollar' and 'hours'</u>, the equation will be.....

After cross multiplying, we will get.....

Thus, Rachel will earn $85 in 10 hours.
In summary. The graph of each equation is a straight line, m is the gradient of the line and c is the y-intercept. Conversely, if a straight line has gradient m and y-intercept c it has equation y = mx + c.
Answer:
D
Step-by-step explanation: