Which of the following ordered pairs corresponds to an arrow on a mapping diagram that starts at 4 and ends at 1? O (1,1)
O (1.4)
0 (4,1)
O (4,4)

it would be 4,1

Step-by-step explanation:

because its the only one that startes with 4 and ends with 1

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

1 is c

2 is a

3 is a

step-by-step explanation: