The equations

and

are really the same, we're just setting
, or
.

So we get

Answer:
1. Equivalent
2. Not equivalent
Step-by-step explanation:
1. Equivalent because there's 4 x's that you add all together and that makes 4x
2. Not equivalent because 5x means there's 5 x's or x + x + x + x + x not only 1 x plus a number 5
Answer:
percent 88%
fraction 44/50
ratio 44:50
Step-by-step explanation: