Answer:
D
Step-by-step explanation:
3x/4=15. Times both sides by 4, 3x=60. Divide both sides by 3, which then x=20.
Step-by-step explanation:
Since, every integer can be expressed as rational number.

Answer:
Step-by-step explanation:
40000*.06+30000*.2+20000*.5+10000*.2+5000*.04= 20600
Answer: 
Step-by-step explanation:
The expression can be simplified by applying the a properties of exponents, specifically the Product of powers, which states that:

Where b is the base and a and c are exponents.
Then simplify it by rewriting the base (
) and adding the exponents of the expression (8 and 9).
You will get the expression simplified and written as a power:

680/17=40. Therefore the height of the rectangle is 40 and the width is 17. so 40+40+17+17= c) 114 feet