Answer:
$8.7 is the price per pound of fertilizer
Step-by-step explanation:
Unit rate defined as the rates are expressed as a quantity as 1 such as 3 meter per second and 4 km per hour.
As per the statement:
Edgar pays $67.86 for 7.8 pounds of fertilizer.
⇒Cost of fertilizer for 7.8 pounds = $67.86
By unit rate definition:
[tex]\text{Unit rate per pound} = \frac{67.86}{7.8}[/tex]
Simplify:
[tex]\text{Unit rate per pound} =\$ 8.7[/tex]
Therefore, $8.7 is the price per pound of fertilizer