135 ; If you are allowed to use a calculator to determine percents you can do 300 × 45% = and it gives you your answer.
Answer:
slope: 
Step-by-step explanation:

the linear line has a positive slope that goes up by 1 unit and right by 2 units
The answer is :
c. (x+1)²=20
To check:
(x+1)²=20 (a+b)²=a²+2ab+b²
x²+2x+1=20
x²+2x=20-1
x²+2x=19
0.6<2x<0.65 (because it's closer to 6)
0.3<x<0.325
Since the thousandths digit of 2x is 2, then the thousandths digit of x is 1 or 6, so the decimal could be 0.301, 0.302, 0.311, 0.312, 0.321
Hope this helps :)