Of the marbles in a bag, 5 are yellow, 5 are green, and 3 are red. Sandra will randomly choose one marble from the bag. Fill in the blanks in parts a and b. a. The probability that Sandra will choose a green marble from the bag is _ out of _, or 0/0? ​

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?