Answer:
8
Step-by-step explanation:
check this out!
-5(a+3)=- 55
-5a-15=- 55
-5a= -55+15
-5a= -40
-5a/-5 =-40/-5
a=8
Choice C is correct.
We have given an equation :
-5(a+3)=-55
We have to solve it for a.
-5(a+3)= -55
-5a-15= -55
Adding 15 on both sides of equation we get,
-5a = -55+15
Multiplying 1/-5 on both sides we get,
-5a = -40
a = -40/ -5
a = 8 is the answer.
No solution
multiples of 4: 4,8,12,16,20,24,28,32,36,40,44,48,52,56,60
12 24 36 and 48 are the only common factors
so 4 days
