2. ( a ) Bottles of water cost 25 cents each.

Question

( ii ) Write down an expression in b for the cost of b bottles in cents.
b bottles x 25 cents/bottle = 25b cents

( iv ) Write down an expression in b for the cost of
b bottles in dollars.

Answer 1

b bottles x 25 cents/bottle x 1 dollar/100 cents = 0.25b dollars