Amare and sikai have toy cars. the ratio of amare's cars to sikai's cars is 7: 3. amare gives sikai 14 cars, so now they each have the same number of cars. how many cars do they each have now?

The graph shown is the graph of which function?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.