The retail cost of a tv is 45% more than its wholesale cost. therefore the the retail cost is how many times the wholesale cost

What situation is an example of an observational study

On a piece of paper, graph y< x+1. then determine which answer matches the graph you drew.

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.