A new sidewalk will be 4 feet wide 220 feet long and filled to a depth of 3 inches (0.25 foot) with concrete. How many cubic yards of concrete are needed?

Which point is a solution to the inequality shown in this graph (-3,-3)(3,-1)

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.