A bag contains 12 red marbles. The ratio of red marbles to blue marbles is 3 : 4. Find the number of blue marbles in the bag I NEED HELP
Thank you

Apark is in the shape of a rectangle. the park authorities are planning to build a 2-meter-wide jogging path in the park (shown as the shaded region in the image). what is the area of the jogging path? plz

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.