How do you prove that angles are parallel?

#1

if corresponding angles are congruent

#2

if alternate interior angles are congruent

#3

if consecutive, or same side, interior angles are supplementary

#4

if two lines are parallel to the same line

#5

if two lines are perpendicular to the same line

#6

if alternate exterior angles are congruent

yes

yes yes yes

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt