23
23
23
(4, 5)
42
23
It equals 435
27
They are expressions.
The awnser to 6 plus 4 equals 10.6 + 4 = 10
y equals x plus 4 when y equals 0 then x equals 2i i is the square root of negative 1
nine
-6
3(4 plus 7) equals 33
6
4
By including its plus or minus signs