A coin will be flipped three times. The result of each flip is either heads (H) or tails (T). The outcome HTH represents the first result is heads, the second result is tails, and the third result is heads. The list of all possible outcomes is shown. Each outcome is equally likely.
HHH, HHT, HTH, HTT, THH, THT, TTH, TTT
If the result of the first flip is tails, what is the probability that the coin lands on heads two times?
A.1/4
B.1/3. C.3/8. D.1/2

(50 ) mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.