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Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?

If a is a nonzero real number then the reciprocal of a is