<span>A. 15
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~ Zoe</span>
To perform the correct operation as to subtract numbers, make sure the denominators are the same, and then one can then subtract and remove a smaller number from the larger one.
This same method also holds true for adding fractions together as well.
Another way to subtract fractions is to convert them from fraction form to decimal form and then align the decimal points and subtract the values.
Answer:
DEF is a right angle
Step-by-step explanation:
Answer: 
Step-by-step explanation:
The exponential function will have this form:
We know that the function passes through the points 
and 
. Then, we can substitute the coordinates of the point into and solve for "a":
Then, we know that:
Now, we neeed to substitute the coordinates of the second point into and solve for "b":
Substituting the value of "b" into 
we can find "a":
Therefore, we get that the exponential function that describes the graph, is:
If the total cost is $87, and it is split among 4 children, each will pay $21.75, because 87/4= 21.75.
