The height of each story of an office building is 9 3/4 feet. the height is measured from the ceiling to the floor. the building has three underground levels for parking. a car is parked two levels below ground. at what elevation are the car’s tires relative to the ground level? assume the ground level is at zero feet.
a) -19 1/2 feet
b) -12 feet
c) 8 feet
d) 19 1/2 feet

Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?

Leo has b boxes of pencils. each box contains 6 pencils. he has a total of 42 pencils. the equation that represents this situation the value of b that makes the equation true the first one is b+6=42,6b=42,b=42+6,or 42b=6 the second one are 7,836 48

Find the quotient. 50a2 – 98b2 -5a +7b