The boy : girl ratio is 4: 5. if there are 225 students, how many girls are in the school? answer and proportion answer and proportion breakdown

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

With finding limits of multi variable !

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b