Answer:
B
Step-by-step explanation:
5a^2 - 44 = 81 Add 44 to both sides
5a^2 = 81 + 44 Collect like terms
5a^2 = 125 Divide both sides by 5
a^2 = 125/5
a^2 = 25 Take the square root of both sides
√a^2 = √25
a = +5
a = -5
The answer is B
Answer: 9: c , 10: a ,11 :d 12: a
Step-by-step explanation:
7 is the distance from school to his aunt
44/5=8.5
8.5-1.5=7