Solve the word problem below algebraically. Show all work!! An electrician charges $50 to come to my house plus $75 per hour. When he was finished, my bill was $350. How long was the electrician at my house?

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

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.

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?