A sequence of numbers can be thought of as a function, where f(n) represents the nth term of sequence. Which could be the domain of this function? a) positive integer
b)irrational number
c)rational number
d) positive real numbers

Option A is correct. Since the number of terms is positive values, hence the domain for the nth terms of the sequence must be positive integers.

Sequencesare series of numbers arranged in a definite pattern.

Assuming the sequence is an arithmetic sequence, the nth term is expressed as

n is the number of terms which is our concern in order to determine the nature of the domain.

Since the number of terms is positive values, hence the domain for the nth terms of the sequence must be positive integers.

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mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: