BRAINLIEST!!
PLEASE HELP ASAP!!
20. Graph the given relation or equation and find the domain and range. Then determine whether the relation or equation is a function.
(3.1, 5.1), (–1.9, 5.1), (–4.9, 3.1), (–4.9, –2.9)

Abaker has 5 1/4 pies in her shop. she cut the pies in pieces that are each 1/8 of a whole pie. how many pieces of pie does she have?

What is the perimeter of square abcd? units units 28 units 37 units

"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?