Yes she is correct! hope this helps
Speed (v) could be determined using this following formula
v = distance ÷ time
plug in the numbers
v =

v =

v = 9/3
v = 3
The speed is 3 miles per hour
1. Simplify brackets<span>-2+11+4 </span>
2. Simplify<span><span>13
(answer is 13) cymath.com is a great help
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Answer:

Step-by-step explanation:
2(4x - 8) - 10
8x - 16 - 10
|_______|
8x - 26
-5x + 8 - 11x - 12
___ ___ _____ ____
___ ____
-16x - 4
-3(4x - 5)
-12x + 15
For the third and first exercises, you just use the Distributive Property, and for the second exercise, all you are doing is combining like-terms.
I am joyous to assist you anytime.