The ratio of north American butterflies to south American butterflies is 7:4. there are 84 north American butterflies, how many south American butterflies are there?

A grocery store manager uses 1/2 crate of apples for every 3/4 crate if oranges in a fruit display. How many crates of oranges will she need if she uses 2 1/2 crates of apples?

What is the answer to this?5 (3x + 7).

Sam and Jo created a grocery list. To make it easier to look at, they each split the list into equal groups. Sam splits the list into groups of 4 and Jo splits the list into groups of 6.

For every 4 miles Vanessa jogged Cody jogged 3 miles if Vanessa jogged 1 mile how far would Cody have jogged

Nathan is out rafting. He rafts 16 miles with the river current. At the end of 16 miles, he turns around and rafts the same distance against the river current. The journey takes him 4 hours overall.

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.