Indicate whether the product is defined. If it is, give the dimensions of the product. A^2 × 3 and B^3 × 4; AB

A: yes; AB^3 x 3
B: yes; AB^2 x 4
C: The Product is not defined
D: yes; AB^4 x 2

(^ means an exponent)

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.

How are algebraic expressions evaluated using substitution?