Rooms in Dormitory A each have 132 square feet of floor space. These rooms have twice as much floor space as each room in Dormitory B.
About how much floor space does a room in Dormitory B have?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score