I nEED HELP HIRRY WITH EXPLANATION PLS PLS find the missing angle, k, in the diagram below

1) 90°
2) 145°
3) 55°
4)35°​

Geometry ? i don't know how to do any of these.

Which expression is equivalent to? assume x > 0 and y > 0.

Abaker makes 186 cookies. some are chocolate chip and some are oatmeal raisin, and both kinds are made with and without nuts, as shown in the table above. because they are more popular, the baker made 2/3 of the cookies chocolate chip. if a chocolate chip cookie is chosen at random, what is the probability that it will have nuts? a) 21/93 b) 21/62 c) 41/93 d) 21/41