A projectile is launched straight up from ground level with an initial velocity of 320 ft/sec. When will the projectile's height above ground be 1538 ft?

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

step-by-step explanation:

most likely the answer is a.

alice wins if a total of 5 is rolled. finn wins if a total of 9 is rolled.

you probably already have the answer but anyways it's b. 15.0

step-by-step explanation: