Answer
Expressions 4(x+5) and 5(x+4) are Equivalent
Expressions 5(2m+2) and 10m+10 are not equivalent
Step-by-step explanation:
Heres why,
4(x+5) and 5(x+4)
4 times x =4x, so multiply 4x by 5 which should give you 20.
and multiply 5 to x which would be 5x and multiply that to 4 which would be 20, they match up so they are Equivalent.
5(2m+2) and 10m+10
times 5 to 2m to get 10m and times 10m by 2 to get 20.
10m+10 = 1 which they are not equivalent
4+3=7
That is because using PEMDAS you basically get (+4)=4 and (+3)=3 hence the equation is 4+3=7
Answer:

Step-by-step explanation:
Consider the real number y such that f ⁻¹(x) = y

We need to find y in order to determine the expression of f ⁻¹(x)
f(y) = x ⇔ -2y + 4 = x
⇔ 4 - x = 2y
⇔ y = (4 - x)/2

Perimeter would be affected by the same scale factor, in this case 2. perimeter only has 1 dimension.
Answer: increas by a factor of 2
Answer:
I believe the answer is 7/20 or 35%.
Step-by-step explanation:
I first started by subtracting the coins that we already know from the total, and I get 7. I put that in fraction form which is, 7/20 and I turned it into percent form which is 35%. I hope one of these answers helps.