Answer:
The answer to your question is below.
Step-by-step explanation:
14.- Use proportions to solve these problems.

14(x + 6) = 10(x + 9)
14x + 84 = 10x + 90
14x - 10x = 90 - 84
4x = 6
x = 6/4
x = 3/2
15.- 
10(x - 1) = 8(x + 2)
10x - 10 = 8x + 16
10x - 8x = 16 + 10
2x = 26
x = 26 / 2
x = 13
16.- 
5(x + 1) = 9(10/3)
5x + 5 = 30
5x = 30 - 5
5x = 25
x = 25 / 5
x = 5
40.71428571428571
If you want you can round it
Well, 5/6 of an hour is 50 minutes. 3/8 of 50 is 6.25. 6.25 times 3 is 18.75.
I believe 18 minutes and 45 seconds.
Answer:
80
Step-by-step explanation:
If your calculator does not have a percent key and you want to add a percentage to a number multiply that number by 1 plus the percentage fraction. For example 25000+9% = 25000 x 1.09 = 27250. To subtract 9 percent multiply the number by 1 minus the percentage fraction. Example: 25000 - 9% = 25000 x 0.91 = 22750.
The answer is A). It has four angles with more than 180 deg measure.