Answer:
B is tbe correct option here
C. CONCAVE
A mirror with a reflecting surface that caves inward is said to be CONCAVE.
Clue: caves inward. )(
Convex has an outline of surface that cave outward. It is like the outside of the circle or sphere. ()
Using elimination method. Using substitution will cause some fraction problems.
c- child tickets
a- adult tickets
4a + 7c = $83
5a + 6c = $90
multiply by -5
-20a - 35c = -$415
20a + 24c = $360
-11c= -$55
c = $5 child tickets
4a + 7(5)= $83
4a + 35 = $83
4a = $48
a= $12 adult tickets
Answer:
A
Step-by-step explanation:
3 and 17
17-3=14
hope that helps