Answer:
charlie,brian,abel
Step-by-step explanation:
Rate of change of profit for this period is $2750 per month
<em><u>Solution:</u></em>
Given that,
Profit of $6500 in January and $17,500 in May
<em><u>To find: Rate of change</u></em>
Since,
January is the first month of the year (1) while May is the fifth month (5)
<em><u>Therefore, we get two points</u></em>
(1, 6500) and (5, 17500)
Using these points we can find the rate of change in profit for this time period
<em><u>The rate of change using the following formula:</u></em>

Here from the points,

<em><u>Therefore, rate of change is given as:</u></em>

Thus rate of change of profit for this period = $2750 per month
x = 5 and y = 3. That is the answer
Answer:
9 x 3 = 27, 27 x 2 = 54
4 x 3 = 12, 12 x 2 = 24
9 x 4 = 36, 36 x 2 = 72
Add given areas:
54 + 24 + 72 = 150 cm^2 is your answer.