How many cubic yards of concrete will it take to pour a driveway 25 feet wide and 100 feet long if it is 6inches deep

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months