A shark takes 20 minutes to swim with the current from its cave to the feeding grounds. Later, it returns against the current, taking 30 minutes. Find the speed of the shark and the current if both the trip out and the trip back are 2100 feet?

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

76%

step-by-step explanation:

24% are dogs and the remaining is 76% because 100-24=76