Please help ASAP if u can!! :)

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

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