1. what is tan(3π/4)? explain your thinking.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

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.

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.