Answer:
r=-40
Step-by-step explanation:
r/-8=5
times -8 on both sides
5 times -8 =-40
r=-40
Answer: A) JUST TOOK THE TEST
Step-by-step explanation:
Answer:
Step-by-step explanation:
Starting at 5 on the number line, 5 + (-3) is 3 units to the left of 5; that is, you are at 2 on the number line.
Answer:
See explanation
Step-by-step explanation:
You are given the equation 
1. Add 8 negative x-tiles to both sides of the equation to create a zero pair on the left side. The equation then will have form

2. Add 5 negative unit tiles to both sides of the equation to create a zero pair on the right side. The equation now is

3. Divide both sides by 3:

It would be the girls because 7 divided into 21 equally is 3. So there will be 7 groups of 3 girls.