Due to the poor economy, a real estate investor lost 120 thousand dollars in 2008. Let the ordered pair (2008, -120) represent this relationship. The
investor did better in 2010 by earning 350 thousand dollars. Let the ordered
pair (2010, 350) represent this relationship. Ruben was asked to calculate the
average rate of change for the investor's earnings from 2008 to 2010.
To solve this, Ruben uses the slope formula to calculate the rate of change
between 2008, -120) and (2010, 350). The student's work is shown below:
(a) Using complete sentences, explain the two mathematical errors in the
student's reasoning.
(b) Calculate the correct rate of change between (2008, -120) and (2010,
350)

i believe the answer is the polygon, heptagon.

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation:

if the angular bisector of an triangle bisects the opposite side, prove that the other two sides are equal.