1/4 converted into a decimal is .25
20÷.25=80
the answer is 80
Answer:

Step-by-step explanation:
The given systems is;

Divide the top equation by 1.2 and the bottom equation by by 0.8 to get:

Now add both new equations:



Let us substitute x=3 into x+2y=-15 and solve for y.
3+2y=-15
2y=-15-3
2y=-18
y=-9
The solution is (x=3,y=-9)
B.HER EXPENSES ARE $30 PER WEEK.
C.IF SHE DOES NOT KNOCK ON ANY DOORS AT ALL DURING THE WEEK SHE WILL LOSE $30
I have this quiz also but didnt have to show the work for mine .