The rate of change is (amount of the change) / (time it took to change) .
Amount of the change = (3 - 1) = 2 .
Rate of change = (2) / (time it took to change from 1 to 3) .
So,
The skateboard cost $67.
The protective helmet cost $25.
To find the percent that the price of the skateboard was out of the total amount, add 67 and 25 and divide 67 by the result.
Step 1:
67 + 25 = 92
Step 2:
67/92 = 0.728 or 72.8%.
The correct option is B.
82... because 24/3 is 8 and 6/3 is 2
Therefore you get 82
Just use the formula:

Then, plug in numbers:

And that would be your answer: 3/5 is the slope.
The answer is 35/8. 5*7 is 35 and 35/8 cannot be reduced more