Answer:
32.5
Step-by-step explanation:
its a trick question
You would do 10 x 2 and you would get 20
Answer:
Step-by-step explanation:
The easiest way to tell if a relation is a function is to look at the x coordinates. If none of them are the same in the set, then the relation is a function. If any of the x values are used more than once in the set, it is only a relation. This set uses -3 two times, so it is a relation.
The second answer i believe
it is the measurement of the positions, motions, and magnitudes of stars.