The answer is A) 33 Spare Units
Answer:

Step-by-step explanation:

we have to move 5 in the other side with a different sign, to get a 2 grade ecuation

now we know
a=2
b=9
c=-5
we have to find delta

and now we have to use the formula to find the root square



Answer:
around 4.5
Step-by-step explanation:
28 divided by 3 is 9.333333333
42 divided by 9.33333333333
equals 4.5