How to find the reciprocal of a mixed fraction

An elevator starts on the 100th floor of a building it decends 4 floors every 10 seconds. At what floor will be in 60 seconds after it starts?

Write 4 / 2 over 5 as an improper fraction

A taxi driver makes $24.50 in an hour, but uses $6.75 worth of gas during that time. what will the driver's total earnings for the hour be, after paying for gas? $16.25 $17.75 $21.50 $19.25 $15.50

Figure ABCD is a parallelogram. What are the lengths of line segments AB and BC? AB = 4; BC = 16 AB = 4; BC = 8 AB = 10; BC = 20 AB = 10; BC = 28

What is greater one inch or one centimeter

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.