What is the image of the point (-7,-3) after a rotation of 90° counterclockwise
about the origin

What is the range of the data below? .8090100

What is the probability of rolling a single die greater than 4

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.