7x+40... If you go to mathwarehouse.com you can type your question in and you'll get an answer in less than a second
20 x 18 x 5= 1,800
20 times 18 equals 360, then you mutiply 5 and get 1,800
Per half gallon it is $2.25
1/2 G=$2.25
1 G=$4.50
1 1/2 G=$6.75
And so on...
Hope this helped
Use the communicative property of addition to switch to order and you get
13 - 5, so the answer is 8, or k = 8
OR
-5 + 13 = k
Combine like terms
8 = k
or
k = 8<span />
