Here is a weather thermometer three numbers have been left off. What numbers go in the boxes?

Can someone show me the steps to solve the problem?

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Ifurniture stores having a weekend sale and is offering 20% discount on patio chairs and table the sales tax on furniture is 6.25 using function composition how can you represent the total amount a that you would need to pay for this furniture that cost x dollars