BEGGING PLEASE HELP Tell whether the conditional and its converse form a biconditional:
Any fraction is in the simplest form if the only common factor of the numerator and denominator is 1 or -1.

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

Which table shows a proportional relationship between miles traveled and gas used?

Jim had 15 minutes to do 5 laps around his school what would his time be