Answer:
Kindly check explanation
Step-by-step explanation:
Given that :
Total amount to spend = $55
Amount of food and drinks purchased = $14.25
Amount put on gaming card = $(55 - 14.25) = $40.75
Cost per game = $1.25
Number of games (g) he can play
Number of games g:
Amount put on gaming card / cost per game
= $40.75 / $1.25
= 32.6 games
g ≤ 32
Assuminhg the ark has a shoe-box (cuboid) shape it´s volume would be:

We have this three measurements (
) and it can be as simple as replacing them in the equation and solving but they are in all in
. We will convert them to
because the problem requires the answer in
. In order to do this we will use the given equivalences:

and another one:

First we will convert from cubits to palms:

now from
to
:

now from
to
:

We can calculate the Volume now like this:

The volume of trhe ark would be 
The left hand side expression of the given equation is a difference of two squares. The first term, x², is a square of x and the second term, 25 is the square of 5. The factors of the expression are (x - 5) and (x + 5).
(x - 5)(x + 5) = 0
The values of x from the equation above are x = -5 and x = 5.