If a plumber earns 22 dollars per job. Then he goes to 3 jobs but in addition he gets paid 38 dollars an hour. If with those 3 jobs he earned more than 350 dollars. Do you know how many hours the plumber worked? Explain in full justification

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Why do interests rates on loans to be lower in a weak economy than in a strong one

∆red ≅ ∆ by rule will give brainiest if possible