Answer:
A thend D
Step-by-step explanation:
Think...... what is 7 and 21 both divisible by?
COUGH they're both divisible by 7.... so divide both numbers by 7, and stick them in they're rightful places
Indefinite amount of solutions.
Answer:

Step-by-step explanation:
Given
The attached square
Required
Find BE
First, we calculate BD (the diagonal) using Pythagoras theorem.

Since the shape is a square, then

So:


Take square roots



BE is half BD.
So:



Answer:
Positive association
Step-by-step explanation:
As the Temperature goes up the more money you have to spend because you pay for the electricity that produces the heat
positive association is when one varriable increases so does the other.