So the total price would be 100% + 8% tax = 108% of the original price. Since 108% written as a decimal is 1.08, we can do the following:
5,000 * 1.08 = 5,400
Plan A = 50 + 0.05(x-500)
Plan b = 20 + 0.06 (x-200)
set A equal to B
50 + 0.05 (x-500) = 20 + 0.06(x-200)
50 + 0.05x - 25 = 20 + 0.06x -12
rearrange like terms on one side.
50 - 25 -20 +12 =0.06x -0.05x
17 = 0.01x
x = 1700 minutes.
Answer:
<u>Average</u><u> </u><u>rate</u><u> </u><u>of</u><u> </u><u>change</u><u> </u><u>is</u><u> </u><u>-</u><u> </u><u>1</u><u>/</u><u>6</u><u> </u><u>or</u><u> </u><u>-</u><u>0</u><u>.</u><u>1</u><u>6</u><u>6</u><u>…</u>
Step-by-step explanation:

f(-1):

f(3):

Average rate of change:



can be simplify as



now comparing 3.6 to 3.46
we can say that
3.6 > 3.46 (√12)
7*(x+5)*(x -5) that is your answer right there