Given 1 ≤ x ≤ 3 and 3 ≤ y ≤ 6, find the greatest possible value of x2 – y.

Segment ab is shown on the graph. which shows how to find the x-coordinate of the point that will divide ab into a 2: 3 ratio using the formula

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

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.