There is a bag with only red marbles and blue marbles. The probability of randomly choosing a blue marble is 1 12 . There are 84 marbles in total in the bag and each is equally likely to be chosen. Work out how many red marbles there must be.

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Find │7│. a. 1 over 7 b. –7 c. 7 asap i always mark brailiest who me so

Sawsan recorded the favorite sport of students at her school. she surveyed 200 students. how many students chose tennis?