There are four more nickels than quarters how many more nickels are there if the coins are worth $2.30

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

Does the point (1, sqrt 7) lie on circle shown.

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?