C. 1.5 hours. divide 12 by 8, and you get 1.5.
Answer:

Step-by-step explanation:
Rational numbers, expressed as decimal numbers, are obtained from the operation of division between the integer of the numerator and the integer of the denominator. Then:

The fraction is 2/6
This is because there are 6 total sections in the shape (6 becomes denominator) and 2 colored in sections (2 becomes the numerator)
Answer: The first question is a corrosponding angle, which means the measure is the same. So, angle KRQ is 146°.
And QRN is 128°.
So to find percent increase, you want to minus the difference in cost..
1.09- 0.87= .22...
now divide the difference by the original....
.22 ÷ .87 = .25287.....etc
now multiply that by 100...
.25287 × 100 = 25.287
now it says round to the nearest tenth so...
25.29% increase.