Given k // l, what can you conclude about these triangles? check all that apply.
a) vertical angles prove ∠1 ≅∠4
b) alternate exterior angles prove ∠5 ≅∠3
c) ∠5 and ∠3 are alternate interior angles.
d) the ratios of the corresponding angles are equivalent.
e) the triangles are similar because all corresponding angles are congruent.

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.