I don’t know what I’m doing and I just need the answer

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?