Rosalie and Tom are creating patterns.

Rosalie uses the rule “add 4” and starts at 3.
Tom uses the rule “add 8” and starts at 7.

Which best compares Rosalie's and Tom's patterns?

A. Tom's number is always equal to Rosalie's number plus 4.

B. Tom's number is always twice as large as Rosalie's number.

C. Tom's number minus Rosalie's number is always divisible by 4.

D. Tom's number is always 3/2 times larger than Rosalie's number.

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.