Josh has 4 shirts(white, blue, green, and red) and 4 pairs of socks in the same colors. how many different shirt-sock combinations does josh have?

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?