Pat needs to paint an 8 ft x 36 ft wall with a window opening of 3 ft x 4 ft. what is the area that she paints?

Using the graph below, select all statements that are true. a. f(0.6)=0 b. f(-3.2)=-3 c. f(5.1)=5 d. this is the graph of the greatest integer function. e. this graph is one-to-one.

Can any one me with the answers to these questions asap?

How are algebraic expressions evaluated using substitution?