19. $30,681.82
20. Find surface area for this one
21. Use geometry
Answer:
25
Step-by-step explanation:
7 * 7 = 49
24 * 24 = 576
576 + 49 = 625

Please mark as brainliest
No sam is not correct because Mia ran .10 and Sam ran .05 And although .05 may seem bigger .10 is more expressed That is the answer I think
Distance formula : sqrt (x2 - x1)^2 + (y2 - y1)^2
(212,23)...x1 = 212 and y1 = 23
(6,23)......x2 = 6 and y2 = 23
now we sub
d = sqrt ((6 - 212)^2 + (23 - 23)^2)
d = sqrt ((- 206)^2 + (0^2))
d = sqrt (42436 + 0)
d = sqrt 42436
d = 206 miles <==