Answer:
Step-by-step explanation:
4×(-5)+4y=15 -> y= 35/4
Answer:
C
Step-by-step explanation:
A perfect square is something times that same thing. Example (x+2)(x+2)
The reason it's called a perfect square is because it can be re-written as a squared function:
The associative property allows you to change the <em>grouping</em> of addends or factors without changing the value of the expression.