Answer:
A i think
Step-by-step explanation:
Jack must score 28 problems correct. To get a 92% he must answer 92% of the 30 questions right. which means 0.92*30=27.6, but it is not possible to score 0.6 of a problem right so you would round to 28, which guarantees Jack scores a 92 because if we round down, Jack would score less than a 92
B=5 because
8-2b=-2
-8 -8
-----------
-2b=-10
-----------
-2 -2
b=5
5(-2)=-10
Kimberly-28
2x Kimberly( Joe)-28/2=14
Brina-I don’t know:((
It’s either 28/‘33=9.33
Or 28*.33=84.
