Please help me with these questions.

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

What are the domain and range of f(x)= -log5(x+2)

Find a conversion factor between square centimeters and square meters. write it in three forms. square centimeters = 1 square meter