Can you explain how to get the correct answers for these questions please?

1.Roland's Boat Tours sells deluxe and economy seats for each tour it conducts. In order to complete the tour, at least 1 economy seats must be sold and at least 6 deluxe seats must be sold. The maximum number of passengers allowed on each boat is 30 Roland's Boat Tours makes $40 profit for each economy seat sold and $35 profit for each deluxe seat sold. What is the maximum profit from one tour?

(Show work)

2.The senior class is having a fundraiser to help pay for the senior trip. Selling a box of chocolates yields a profit of $2.45, while selling a box of cookies yields a profit of $2.70. The demand for cookies is at least twice that of chocolates, but the amount of cookies produced must be no more than 550 boxes plus 3 times the number of chocolates produced. Assuming that the senior class can sell every box that they order, how many boxes of each should they order to maximize profit if they cannot order more than 1950 boxes combined?

(Show work)

3.A projectile is fired from ground level with an initial velocity of 35 m/s at an angle of 35 with the horizontal. How long will it take for the projectile to reach the ground?

(Show work)

4.A discus is thrown from a height of 4 feet with an initial velocity of 65 ft/s at an angle of 44 with the horizontal. How long will it take for the discus to reach the ground?

(Show work)

5.A rock is tossed from a height of 2 meters at an initial velocity of 30 m/s at an angle of 20 with the ground. Write parametric equations to represent the path of the rock.

(Show work)