9 - x^2
= 3^2 - x^2
= (3+x)(3-x)
He stops 21 times, because if you divide every mile into 3, then you times 3 by 7 and get 21
Answer:
-1 + 2 = 1
1 + (-2) = -1
-1 - 2 = -3
1 - (-2) = 3
Step-by-step explanation
When you subtract use keep change change
Rule 1 when you add : If the signs are the same add the numbers and take the sign of the bigger number.
Rule 2 when you add : If the signs are different subtract the numbers and take the sign of the bigger number.
I wanted to help you understand and i hope i did that!
Starting with the least score it would be ; 9.25 , 9.325 , 9.5 , 9.675
Answer:
Step-by-step explanation: 36-30%= 25.2
your answer should be 25.2
