Can anyone help me this is due in 20 mins!

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

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

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?