Joni's jar of 10 marbles contains 2 red, 3 blue, and 5 yellow marbles. How many red marbles would Joni need to add to the jar, so that 1/3 of the marbles are red?

At a large university, data were collected on the number of sisters and brothers that each student had. Let the random variable X represent the number of sisters and the random variable Y represent the number of brothers.

What is the answer to (14/5) / 4

24 students in a class took an algebra test if 18 students passed the test what percen passed

Approximately how many miles are in a light-year? a. 6 * 106 b. 6 * 109 c. 6 * 1012 d. 6 * 1015

Find the equation that models the path of a satellite if its path is a hyperbola, a=55,000 km and c=81,000 km. Assume the center of the hyperbola is the origin and the transverse axis is horizontal.

What is 2 plus 2 plus 3 plus 6 plus 5

40 dogs every 5 hours how may per hour

A box contains 9 green balls, 16 red balls, 9 white balls, and 6 pink balls. What is the probability of drawing a pink ball out of the box? A) 1/16 B) 3/20 C) 2/5 D) 7/8

Evaluate this expression: |-2.3|

Rafael earned a salary of 34,944 last year. How much did he earn per month? A.$416 B.$4992 C.$672 D.$2912