X and y are books
x is fiction
y=nonifiction
x+y=36
x=12+y
12+y+y=26
2y+12=26
minus 12
2y=14
divide 2
y=7
sub
x=12+y
x=12+7
x=19
nonfiction=7
80/100 x 30 = 24 because you just multiply percents
First you need to distribute the 2 into each equation and then add like terms. the answer is 6x + 8
If the area is 168& the length is 2 feet more so length is 14& width is 12 (14*12= 168), the rug is 8feet in total less from all sides so it gives an area on 160. To come out with length& width knowing the length should be less than 14, so it could be either (10*16, 8*20)
3/100 = 0.03
9000 * 0.03 = 270
She got $270 in commission last month.