Helium is being pumped into a sheridan balloon at a rate of 5 cubic feet per second. how fast is the radius increasing after 2 minutes? v=(4/3)(pi)r^3

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

d no solution

step-by-step explanation: