Answer:
The probability of a successful event is the ratio of the number of successful events to the total number of events. In this case, a successful event is selecting a red marble from the box. The total number of events is the total number of marbles in the box:
Red marbles/Total number of marbles
4/12 divide
=1/3
Answer: you will need approximately 23 grams
Step-by-step explanation: but thats approximately
Answer: I think its 1
Step-by-step explanation: