I need help ASAP I don't know how to do this and I'm having trouble figuring it out if you helped that would be very appreciated.

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.

Hurry!me out! m c 8 10 12 gracie's art box has 5 less crayons, c, than three times the number of markers, m. function: c = 3m - 5 complete the table to show how the number of crayons depends on the number of markers. enter answers in order from top to bottom.

At school 460 of the students walk to school the number of students who take public transit is 20% of the number of students who walk. how many students take public transit