These three. i don’t know how to do them

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

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Afunction, f(x), represents the height of a plant x months after being planted. students measure and record the height on a monthly basis. select the appropriate domain for this situation. a. the set of all positive real numbers b. the set of all integers oc. the set of all positive integers od. the set of all real numbers reset next