1) S = a*Ha a = S/Ha
подставляем. a = 15
2) S = b*Hb b = S/Hb
подставляем. b = 9
3) P =
2(a+b)
P = 2*(15+9) = 48
2. I might see you tomorrow
3. Sarah might forget to phone.
4. It might snow today.
5. I might be late tonight.
7. Mark might not be here next week.
8. I might not have time to go out.
Посчитай 25 -15 получается 10