What is the reason for the third step in this proof?
given: a || b, and both lines are cut by transversal t.

pls. see attachment.

Step: 3

Reason:Alternate interior angles theorem.

Step-by-step explanation:

We are given that

and both lines are cut by transversal t.

We have to find third step in proof.

Proof:

Step 1:

Reason :Given

Step 2:

Reason: Verticale angles theorem.

Step: 3

Reason:Alternate interior angles theorem.

Step 4:

Reason: Transitive property of congruence

Step 5:

Reason:Vertical angles theorem

Step 6:

Reason:Transitive property of congruence.

Hence, proved

income. 10x+1300

expenses 3x+(1800+1500)

expenses 3x+3300

to break even:

income = expense,

10x + 1300 = 3x + 3300,

solve for x.

step-by-step explanation:

mark brainliest