The difference of 5 times the cube of x cubed and
the quotient of 4 times x and 3

What is the upper quartile in the box plot?

Sketch one cycle if the cosine function y=2cos2theta

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.