How much is for a dozen eggs?

How can division and multiplication be useful in real life situations? What is the best way to clean a car? Is 87 a lucky number? Where do all longitude lines come together? 147? What are the effects of reduced mobility? How do you multiply minutes and seconds by a number eg 3min 45secs x 3? Write a program to find of all prime number between 100and 500? How many cm is 5 feet 7 and a half inches? What measurements do you need to find the area and perimeter of a rectangle how would you use these measurements to find the area and perimeter of a rectangle? What is the LCM of 4 8 and 13? What number divided by 2 has a remainder 1 divided by 3 has a remainder 2 divided by 4 has a remainder 3 divided by 5 has a remainder 4 divided by 6 has a remainder 5 divided by 7 has 0 remainder? Are all right angles similar? How many dollars is 1000 quarters? What is the surface area and volume aea of 0.5 cm x 0.5 cm x 6.0 cm? Which is greater 3 over 10 or 7 over 10? How many number lines comprise the basic parts of the cartesian coordinate? If 100 apples cost 4 Pounds what is the cost of one apple? What number can go into 21 and 36 evenly? What is 55 over 36 as a fraction in simplest form?