Answer:

Step-by-step explanation:
We want to to rewrite

Use difference of two squares to get:

This implies that:


This finally simplifies to:

Therefore the required product is

There are 45 girls in Jonathan's class.
G = 4n is the correct equation to use. Eg 10 x 4 = 40, 18 x 4 = 72 and 21 x 4 = 84
Answer:
2.2
Step-by-step explanation:
You have to input the 5 into the x place. so it would be y=3(5) and you get the answer y=15