Someone please tell me the answers for these!

1. 4 seconds

2. graph 2

3. graph 1

4. 4 seconds

5. 1=A, 2=C, 3=A, 4=A, 5=B

Step-by-step explanation:

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

the equivalent expression are always the hardest ones but you look at the gcf also

step-by-step explanation: