30 ones 82 thousands 4 hundred thousands 60 tens and 100 hundreds. what number am i

Lana's family entered a 5-kilometer race lana's average step length is about 0.5 meter how many steps will she need to take the finish

Match the one-to-one functions with their inverse functions.

The floor of a building consists of 3000 tiles which are rhombus shaped and each of it's diagonals are 45 cm and 30 cm in length. find the total cost of polishing the floor, if the cost per m² is rs. 4.