Quick !
if a is a rational number and b is a rational number, then the product ab must be?
a) rational.
b) imaginary.
c) an integer.
d) irrational.

3(10x-y)-5(x-y^2) need this solved asap

The equation y=mx+b is the slope-intercept form of the equation of a line. what is the equation solved for b? y-m=b y-mx=b y/mx=b y/m-x=b

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?