Write an expression whose value is the number of bytes that an int variable occupies on whatever machine the expression is executed on.

here is the expression: sizeof(int); Also here is the example how you can youse sizeof(int):
int int_size(sizeof(int)); It's often used to display the sizes of a number of variables:

Company has asked employees for suggestions on ways to personalize the retail customer's shopping experience. they want to supplement traditional appeals to the customer. you have come up with several ideas. select the idea or ideas you have decided to submit.c. designate two of the curtained areas in the women's dressing room for nursing mothers  d. tailor merchandise in each store to the preferences of customers in that geographical region