Jacob rode on his bike straight down a hill, accelerating from a speed of 3 m/s to 9 m/s in a total time of 4 s. What was his acceleration? [a = Av/t]
O a) 3 m/s?
Ob) 1.5 m/s?
c) 2.25 m/s
Od) o.75 m/s

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3