The sum of 6 and a number is 15

15+6=21

Step-by-step explanation:

21

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In mathematics, sum can be defined as the result or answer we get on adding two or more numbers or terms. Here, for example, addends 8 and 5 add up to make the sum 13.

Step-by-step explanation:

https://www.wyzant.com/resources/answers/515691/six_times_the_sum_of_a_number_and_15_is_42

https://www.splashlearn.com/math-vocabulary/addition/sum

23

step-by-step explanation:

hey there!

if she's saving for six months, let's divide the total number we need for the trip by six, dividing it into the amount that needs to be saved for each month.

500 ÷ 6 =

she needs to save at least this amount each month, so we should use this symbol: ≥

let x be the amount she saves each month.

your final answer is x ≥

hope this !