Let;
b - cost of one flower bouquet
v - cost of one vase
For the first florist, the total cost is $12.50. and it consists 2 flower bouquets and 2 vases. So, we need to divide the total amount by 4 items. This gives us an amount of $3.125, both representing b and v.
As for the second florist, the total cost is $29.00 and it consists of 8 flower bouquets and 2 vases. We need to divide this amount by 10 items. This results to $2.6, represents the cost of one flower bouquet and one vase.