At a track meet, a girl runs 51 meters in 8 seconds. What’s the unit rate?

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

The table represents a linear function. what is the slope of the function? –6 –4 4 6

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.