PLEASE HELP ME I'M GIVING 40 POINTS AND BRANLIEST ASAP (attached is an image)
Diana and Joby wrote the following proofs to prove that vertical angles are congruent. Who is correct?

Diana is correct, but Joby is not.
Both Diana and Joby are correct.
Neither Diana nor Joby is correct.
Joby is correct, but Diana is not.

Which is true regarding the graphed function f(x)?

Carla is saving money for a trip this summer. she already has some money in her savings account and will add the same amount to her account each week. at the end of 2? weeks, carla has? $130. at the end of 8? weeks, she has? $280. write a linear function in the form y=mx+b to represent the amount of money m that carla has saved after w weeks.

The continuous random variable x is uniformly distributed over the interval [–1,3]. find -e(x) -var(x) -e(x²) -p(x < 1.4) a total of 40 observations of x are made.