Expand out, this literally just wants you to multiply everything by -1.
so 7*-1 = -7
-c*-1 = c
thus putting them together to get -7+c which is just c-7
Answer: Yep! This is true.
Explanation: Real number subsets also include irrational numbers, whole numbers, integers, and natural numbers.
Answer:
65*h=c
Because if it's per hour c is dependent on the amount of hours.
Answer:
3:1
54:18
Step-by-step explanation:
You can divide both sides by 9 to get one ratio:
27/9:9/9
3:1
You can also multiply both sides by 2 to get another ratio:
27(2):9(2)
54:18