(Python) Make a program that receives two real numbers from the user (a and b). After that, the program should display the following menu on the screen: Type 1 to add. Type 2 to subtract. Type 3 to multiply. Type 4 to divide. Type 5 to exit. According to the user's option, the program will print on the screen the result of a + b, a-b, a * b or a / b.

Make a program that receives a text from the user and displays on the screen if the text contains numbers only, or contains only letters or contains letters and numbers.

Receive a number from the user and verify that it is between 0 and 10, inclusive

The city hall of Cafundodojudas opened a line of credit for employees. The value maximum benefit may not exceed 30% of the gross salary. Make an algorithm where the user informs his gross salary and the amount of the benefit and the program displays on the screen if the loan may or may not be granted

I have a lot of doubt in these questions because when I tried, doesn't work, and I am only entitled to one more question post, thank you if you can help to do all.