Answer:
$
or ≈$
Step-by-step explanation
The question states that Mrs. Hadley spent $126.97 on one month, $237.81 on the next, and $198.42 on the last. To get the total, we can add these values together.

An estimation would be:

We can use this estimation to determine that the total value is reasonable.
Answer:
It Mike who ate the most pizza
Step-by-step explanation:
Answer:

Step-by-step explanation:
we would like to find the inverse of the following function:

to do so substitute y for f(x):

interchange variables:

cancel 9 from both sides:

square both sides:

add 4 in both sides:

divide both sides by 4:

substitute back:

and we're done!
Answer:
904.75
Step-by-step explanation:
The area of a semicircle: r^2
/2
3x-195>=5x-21
Add 21 to both sides
3x-174>5x
Sub 3x from both sides
-174>2x
Divide both sides by 2
-87>x