One and two-thirds divided by 3

For what value of x does 4x = (1/8) x + 5?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f