Problem $3-24($Algo$)$

Timely Transport provides local delivery service for a number of downtown and suburban businesses. Delivery charges are based on distance and weight involved for each delivery: $35$ cents per pound and $30$ cents per mile. Also, there is a $$40$ handling fee per parcel.

a$.$ Develop an expression that summarizes delivery charges. $($Enter your answers as dollar amounts to $2$ decimal places. $($x$1=$ weight, x$2=$ distance$))$

b$.$ Determine the delivery charge for transporting a $50-$pound parcel $30$ miles. $($Do not round your intermediate calculation. Round your answer to $2$ decimal places.$)$