Since the 50 remains the same every time, is has no letters next to it in the equation. The 20, however, is multiplied by the amount of hours, and will therefore have an h next to.
20h + 50- the answer is a.
10x -15y=45
9x+15y= 12
19x= 57
x= 3
3(3)+5y= 4
9 + 5y = 4
5y = -5
y = -1
(3,-1)
I am not sure but i think you were to say this:(1st quality)x=( )(2nd quality)
Answer:
I'm pretty sure your answer is 
Step-by-step explanation:
Answer:
The answer can be find out by doing the following steps;
Step-by-step explanation: