Jack is 12 years older than Brian. Two years from now, Jack will be twice as old as Brian. How old is Brian? Please don't add a link.​

5

Step-by-step explanation:

If Jack is twelve and in two years he will be double the age of Brian, add 2+12=14. Then, divide by two to get Brian's age in two years, or 7. 7-2=5 so he is five right now.

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

answer: a clock

step-by-step explanation: