To calculate the charge for the rides, we can use the formula \( c = 0.20m + 2.00 \), where \( c \) is the total cost and \( m \) is the number of miles traveled.
a. For a 1-mile ride:
\[ m = 1 \]
Substituting into the equation:
\[ c = 0.20(1) + 2.00 \] \[ c = 0.20 + 2.00 = 2.20 \]
So, the charge for a 1-mile ride is $2.20.
b. For a 2.7-mile ride:
\[ m = 2.7 \]
Substituting into the equation:
\[ c = 0.20(2.7) + 2.00 \] \[ c = 0.54 + 2.00 = 2.54 \]
So, the charge for a 2.7-mile ride is $2.54.