Find the value of the variable if necessary round the answer to the nearest tenth

How many grams the dog will eat in 3 days?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

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