Amy bought 8 boxes of chocolates. Each box cost $6.38. How much did she spend?

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

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is