4(x+53) is his father's weight. Hope this helped!
Answer:
There would be 7 swan boat rides out of which 6 will carry 6 people each but the last swan boat ride carries 4 people. 2 more people can join the swan boat ride.
Step-by-step explanation:
We are given the following information in the question:
A park guide plans the swan boat ride for 40 people.
Total number of people = 40
Number of people that can ride in 1 boat = 6
Number of boats required =

This can also be represented with the modulo function which gives the remainder.

Thus, there would be 7 swan boat rides out of which 6 will carry 6 people each but the last swan boat ride carries 4 people.
2 more people can join the swan boat ride.
The selling price is 2.5 times the cost. If the cost goes up by 0.25, the selling price needs to go up by 2.5*0.25 = 0.63 in order to maintain the gross margin.