Find each sum or difference 36.12+5.793

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60