A box contains 7 red and 3 green balls. Two are picked out at random.
Find the probability that:
the balls are different colour

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

A50-foot ladder is leaning against a vertical wall. if the base of the ladder is 45 feet from the base of the wall, find the angle the bottling of the ladder makes with the ground.

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.