Rachel and david share 40 biscuits between them in the ratio 2: 3, how many biscuits do they each get?

Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)