Answer:
-1/6
Step-by-step explanation:
5a+2/3=-1/6
5a=-1/6-2/3
5a=-1/6-4/6
5a=-5/6
a=(-5/6)/5
a=(-5/6)(1/5)
a=-5/30
simplify
a=-1/6
divide it
18/20 = 0.9
18 is 90% of 20
Answer: Inequality 7n - 22 >= 64Solution 7n > = 64 + 22 7n >= 86 n => 12. 28 rounded down to 12 Grace must wash at last 12 cars