How can I make a fraction problem out of 12 and 39

Using the following information regarding the birthplace data for the first 40 + president of the U. S. to answer the following question. - A president born in Virginia was inaugurated before the age of 60 75% of the time.

Four times one and three fourths

Find the mean of the data set 18,36,24,36,30 and 36

A colony of ants carried away 16 of your muffins. That was 4/5 of all of them! With how many did you start?

Tyson has 1/2 pound of raisins to divide equally into 7 different bags what fraction of pound will be in each nah?

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.