Answer:
2(s + 5) = 2s + 10, not 2s - 10
2s - 10 = 2s + 10

Without any calculations it's evident it can't be neither B (both numbers are even, so they're divisible by 2) nor C (the numbers end in 0 and 5, so they're divisible by 5).
A.

Both numbers have a factor of 3, so they're not relatively prime.
That means it must be D. But, let's check it.

Indeed, those two numbers are relatively prime.
It is 1.20 a marker. 4.80 divided by 4 equals 1.20
Answer:
Step-by-step explanation:
7.10
I think the answer to that number sentence is 107