Find the greatest common factor

Fill-in the blanks with correct expressions indicated by the property of equality to be used. 2. (80 + 4) · 2 = 84 · (multiplication property)

At a toy store, five tricycles are sold for every nine bicycles sold. if 27 bicycles aresold, how many tricycles are expected to be sold by the toy store? ​

Boying borrowed php.600.00 from nove who had php. 1000.00 after boying paid nove half of what he borrowed, how much money did nove had?