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Virus A is about 2 x 10-18 meters in

length. Virus B is twice as long.

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What is their total combined length? Write

your answer in scientific notation.

A farmer has one square mile of land. suppose the farmer buys another 1/2 square mile of land and divides all his land into square fields 1/4 mile long and 1/4 mile wide.

Write down in terms of n, an expression for the nth term of the following sequences: 12,16,20,24,28

20 percent of 70 plants

You randomly draw a marble from a bag. You then put it back before drawing a second marble.

Find the slope of the treadmill shown to the right

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.