19z - 67
............................
To find if three number are a triangle, the formula is A^2 + B^2 = C^2. This means that when you square the lowest two terms they need to add to the square of the third number.
12^2 = 144
13^2 = 169
144 + 169 = 313
26^2 = 676
Since 313 does not equal 676 these numbers cant be the sides of a triangle.
-7.08 as a fraction in simplest form would be -177/25
I don’t even know sorry I will try and help out next time
$240
Since a square yard is 3ft x 3ft, a square yard is equal to 9 square feet. Dividing 180 square feet by 9 square feet, we find that the room is 20 square yards.
Since carpet is $12 per square yard, and we have 20 square yards to cover, by multiplying 20 by $12, we find that the room will cost $240 to cover.