Y= (2x-20)/ 5 then you replace y so with a simple calculation u get x than u replace x with it value to get y as simple as that
1812/4=
453
The answer is 453
29.99-20%= 23.99
25.00-10%= 22.50 so, Mr.chang got the better deal ( but not by much.)
12 feet + 16 feet= 28 feet needed
The store does not have enough fabric.
There are 3 feet in a yard.
8 yards * 3 feet= 24 feet of fabric available
Irrational Number
You can tell this easily because the square root of 50 isn't a perfect number.
