Answer:
30 adult tickets and 50 child tickets
Step-by-step explanation:
605 = 8.5a + 7c
80 = a + c
620 = (8.5*40) + (7*40)
605 = (8.5*30) + (7*50)
a = 30 c = 50
Answer:
398
Step-by-step explanation:
Answer:
26. 14 sq.units
27. I think it's near to be 30
28. I think it is the first one