Answer:
Step-by-step explanation:
(2n+ 2)(6n+ 1)
2n+6n=8n
1+2=3
=8n+3
Answer:
or 
Step-by-step explanation:
First, you can convert the mixed number
into a decimal number. To do this, you need to divide the numerator (which is 1) by the denominator (which is 2) of the fraction:

Now you must add 0.5 to the whole number part. Then:
In order to find the ratio of cleaner to water, you must divide 1.5 cups of cleaner by 12 cups of water.
Therefore, the ratio is:
or 
let two integers be x and y
A.T.Q
x+y= -3
or, x= -3-y(i)
and xy= -18
or,(-3-y)y= -18[by(i)]
or,- -3y-y²= -18
or,-y²= -18+3
or, -y²= -15
or, y²=15
therefore y=✓15
from (i)
x= -3-✓15
y=√15