Mrs. Sprout planted a tomato plant in her garden. When she planted the tomato plant, it was 6 inching high. After 4 weeks, she measured her plant and it was 9 inches high. The plant increased in height by what percent?

F. a fair coin is thrown in the air four times. if the coin lands with the head up on the first three tosses, what is the probability that the coin will land with the head up on the fourth toss? a. 0 b. 1/16 c. 1/8 d. 1/2