7of 9 for each 15 mm of coloured fabric gavyn uses to make his curtains, he also uses 2 cm of white fabric. express the amount of white fabric to coloured fabric as a ratio in its simplest form. (va)

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.