The ration of red marbles to white ones is 13 to 12. If there are 3,081 red marbles how many white ones are there?

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

The volume of the sun is approximately 1 × 10^18 cu km, while the volume of jupiter is approximately 1 × 10^15 cu km. which of the following is true? a. the volume of jupiter is approximately one thousand times the volume of the sun. b. the volume of jupiter is approximately one hundred times the volume of the sun. c. the volume of the sun is approximately one thousand times the volume of jupiter. d. the volume of the sun is approximately one hundred times the volume of jupiter.