Answer: Carys earns $10 per hour and earn $1 in
hour .
Step-by-step explanation:
Given: Carys calculates the total amount E, in dollars, that she earns for working h hours.
She use the equation to calculate the total amount
.
Foe h=1, 

hence, she earns $10 in one hour.
Therefore, Carys earns $10 per hour.
Let she earn $1 then put E=1 in the equation, we get

Hence, she earn $1 in
hour .