Answer:
The rate of change is 27.5 miles per hour
Step-by-step explanation:
Given:
Distance driven by mike = 110 miles
Time taken by mike to drive 110 miles = 4 hours
To Find:
Rate of change=?
Solution:
The rate of change is also known as speed . Here we have to find the speed at which the mike drives
So we know that

Substituting the values
Speed =
Speed =27.5
Combine like terms
2z-8=-10
Then add 8 to both sides
2z=-2
Then divide both sides by 2
z=-1
Final answer: z=-1
Positive 25 that's the answer
868 is about 870, and 28 is about 30, so your expression would be 870 divided by 30 which would be 29 and the actual answer is 31, so your estimate would be close to your actual answer.
If she works 40 hours getting paid $12 an hour she will get $480