Answer:
b
Step-by-step explanation:
i took the test
Say that you're thinking of number 
You multiply it by 8, and have 
You add -1 (i.e., you subtract 1) and have 
This equals -17, so you have

Add 1 to both sides

Divide both sides by 8:

So, you were thinking of -2.
<span>If there is a hypotenuse, the triangle is a right triangle. From the Pythagorean Theorem:
c^2 = a^2 + b^2 [the square of the hypotenuse is the sum of the squares of the other two sides]
c^2 = 11^2 + 11^2 = 121 + 121 = 242
c = sqrt(242) = 15.56 cm (rounded)</span>
Answer:
4hrs to 9hrs
Step-by-step explanation:
The ratio of 20 hours to 45 hours is
4hrs to 9hrs