Answer: −10
Step-by-step explanation: 9^2−21/−6
81−21/−6
60/−6
−10
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:

Answer:
-18
Step-by-step explanation:
Hope it helps....................................................
I think its 1/10 miles/hour
Answer:
second one is 3, the last one is 4560
Step-by-step explanation: