Jim has received scores of 70 and 74 on his first two 100 point tests. What score must he get on his third 100 point test to keep an average of 76 or greater?

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.