6-7/8=?*6+7 points for the girls

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

Abiologist is recording the loss of fish in a pond. he notes the number of fish, f, in the pond on june 1. on july 1 there were 63 fish in the pond, which is 52 fewer fish than were in the pond on june 1. which equation represents this situation? a. f – 52 = 63 b. f – 63 = 52 c. 63 – f = 52 d. f – 63 = –52

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