If Y = 13 inches, Z = 19 inches, H = 7 inches, and W = 3 inches, what is the area of the object? A.
304 square inches
B.
123.5 square inches
C.
147 square inches
D.
190 square inches

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

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?