A12 foot piece of string is cut into two pieces so that the longer piece is 3 feet longer than twice the shorter piece. find the lengths of both pieces

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min if they did not stop driving, how many miles could kyle and elijah drive in a whole day? ? 1 day = 24 hours. plzzz i will give you 100 points