Who can solve this you just have to calculate the measure of each lettered angle

Ascuba diver was 80 feet below sea level and swam up at a rate of 4 feet per minute. the two solutions show how long it took the scuba diver to reach an elevation of 20 feet below sea level. lydia and max used the methods shown below to find the time it took the diver to reach the new elevation.

An octagonal prism has jow many lateral faces?

John has 1/2 pound of oranges to share with julie. if they share the oranges equally, how much will each of them have?