There are 5 red marbles, 8 blue marbles, and 12 green marbles in a bag. What is the theoretical probability of randomly drawing either a red marble or a blue marble?

20%
32%
52%
13%

So you want probability of red and blue so add them
5+8=13
Than you add to see how many total in the bag
5+8+12=25
Now divided
13/25=52%

Answer: the correct answer is 10step-by-step explanation: let the number be n, then the expression becomes,then“twelve more than the quotient of a number and two, decreased by four” iswhen n=4,we substitute 4 whetever we see n to get,we simplify to obtain,we further simplify to get,therefore the correct answer is c.