I need help understanding how to work out trigonometry equations .

Antonia and carla have an equivalant percentage of green marbles in their bags of marbles. antonia has 4 green marbles and 16 total matbles. if carla has 10 green marbles , how many total marbles does carla have

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)