Charlie runs at a speed of 3 yards per second. about how many miles per hour does charlie run?

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

i can't see the picture : /

8496 cars

step-by-step explanation: