[Python] Issues with 2 ZyLabs Problems (1.24 & 1.25)

First off, I am BRAND NEW to scripting, so please forgive me for having to ask for help with such rudimentary problems. However, I am trying to complete my first Module for python scripting class at SNHU & am struggling to figure out how to satisfy what these two problems are wanting from me, specifically. Im not sure if I am just overthinking them, or if I am missing something, or what the issue is. The two problems are as follows (in italics):

*The following equation estimates the average calories burned for a person when exercising, which is based on a scientific journal article (source):

Calories = ( (Age x 0.2757) + (Weight x 0.03295) + (Heart Rate x 1.0781) — 75.4991 ) x Time / 8.368


Write a program using inputs age (years), weight (pounds), heart rate (beats per minute), and time (minutes), respectively. Output the average calories burned for a person. Output each floating-point value with two digits after the decimal point, which can be achieved as follows:

print('Calories: {:.2f} calories'.format(calories))
Ex: If the input is:
49
155
148
60


then the output is:

Calories: 736.21 calories*


Starter code given is:

Calories = ((Age x 0.2757) + (Weight x 0.03295) + (Heart Rate x 1.0781) - 75.4991) x Time / 8.368


AND

*(1) Prompt the user to input an integer between 32 and 126, a float, a character, and a string, storing each into separate variables. Then, output those four values on a single line separated by a space. (Submit for 2 points). Note: This zyLab outputs a newline after each user-input prompt. For convenience in the examples below, the user's input value is shown on the next line, but such values don't actually appear as output when the program runs.

Enter integer (32 - 126):
99
Enter float:
3.77
Enter character:
z
Enter string:
Howdy
99 3.77 z Howdy


(2) Extend to also output in reverse. (Submit for 1 point, so 3 points total).

Enter integer (32 - 126):
99
Enter float:
3.77
Enter character:
z
Enter string:
Howdy
99 3.77 z Howdy
Howdy z 3.77 99


(3) Extend to convert the integer to a character by using the 'chr()' function, and output that character. (Submit for 2 points, so 5 points total).

Enter integer (32 - 126):
99
Enter float:
3.77
Enter character:
z
Enter string:
Howdy
99 3.77 z Howdy
Howdy z 3.77 99


99 converted to a character is c*

Starter code given is:

user_int = int(input('Enter integer (32 - 126):\n'))

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