Find the length of one side of the square area 5625

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 p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if

Susie wants to take her friend out for lunch. she wants to spend $9.75 each person. how much will she spend in all.