Answer:
a) $15287.71
b) $15017.64
c) $16,368 − <em>r</em>%
Step-by-step explanation:
<u>Mary's car price (including tax): $16,368</u>
[<em>possible tax rates and listing prices</em>]
<u>a) 6.6%</u>
➠ $15287.71
<u>b) 8.25%</u>
➠ $15017.64
<u>c) </u><u><em>r</em></u><u> (any rate)</u>
➠ $16,368 − <em>r</em>%
<u>How did I find my answers?</u>
I had to <em>find the sales tax</em>, and<em> subtract it from the overall cost</em> of the item.
- To find the sales tax, all I had to do was multiply the sales tax percentage by the price of the item
- Next, all I had to do was subtract the sales tax from the item's cost
The answer is 3.1 cm
Solution:
2(6.3)+b=15.7
12.6+b=15.7
subtract 12.6 from btohs ides
b=3.1
answer is base=3.1 cm
Paul surely charges 75 dollars, and then he adds 40 dollars per hours. This means that the expression for the money he asks is

where
is the amount of money and
is the number of hours.
Since
can be at most 8, this is the case that generates the highest money, so if we plug
we have

The fraction 5/8 is also the equation of 5 divided by 8, so we just do 5 divided by 8, which is
0.625 as a decimal.
Hey!
---------------------------------------------------
Question #1:
b + 0.6 = -1
b + 0.6 - 0.6 = -1 - 0.6
b = -1.6
Answer:

---------------------------------------------------
Question #2:
y - 0.6 = -1.8
y + (-0.6) + 0.6 = 1.8 + 0.6
y = -1.2
Answer:

---------------------------------------------------
Question #3:
n + 11.5 = -29
n + 11.5 - 11.5 = -29 - 11.5
n = -40.5
Answer:

---------------------------------------------------
Question #4:
e - 14.4 = -20.8
e - 14.4 + 14.4 = -20.8 + 14.4
e = -6.4
Answer:

---------------------------------------------------
Hope This Helped! Good Luck!