--Answer--
1. $85
2. $15
--Explanation--
1. 15% off of 100 just means moving the decimal in 15 over by 2 to the left.
From there, multiply 100 x 0.15.
Then you get 15, so that's how much tax you are paying. Meaning Subtract 15 from 100 to get the price it originally was before tax. 100 - 15 = 85.
2. $15 dollars tax from moving decimal 2 to the left of 15%.
ANSWER
The algebraic expression that is a polynomial with a degree of 2 is

EXPLANATION
The degree of a term of a polynomial is the total sum of the exponents of the variables in each term.
The highest degree of the polynomial is considered the degree of the polynomial.
For first option,

the highest degree is 3.
The second option is,

This polynomial also has a degree of 3.
The third option is,

This last option has a degree of 2.
Therefore the correct answer is option C.
Answer:
0.96
Step-by-step explanation:
If the diameter is 8 centimeters, the radius is 4. We can use the formula

and plug in r=4 and h=13 to get

, so

.
Answer:
c
Step-by-step explanation:
x+x=90
2x=90 ,x=45 ,∆BAD=45