Angle b= 50
Angle c= 130
Complementary angles are two angles that add to equal 90
Supplementary angles are two angles that add to equal 180
To find the measurement of angle b, subtract 40 from 90 (50)
To find the measurement of angle c, subtract 50 from 180 (130)
The sum of y+x, or 5+7, is rational. This is because each integer(non fraction/decimal)is rational, it is also rational.
y in the first equation because y is already by itself. All you have to do is move the -3x to the other side.
He spent exactly 20.25, so it's A.
I would say b the reason is because -2 is on the x and -6 in on the y so it would be left then down.