Answer:
$0.84
Explanation:
To find the cost of 4 flowers, we need to divide both sides of the equation: 20 = 4.2 by 5.
20 / 5 = 4
4.2 / 5 = 4.2/5 -> 0.84
Next, change both values in the equation with the quotients (4 and 0.84):
4 = 0.84
Our new equation explains that 4 flowers equals the price of $0.84.