Find a number such that the sum of the number and its reciprocal is 68/8

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 my mom gets $13.05 an hour, and she works from 3: 30 to 10: 45 in the morning, how much money does my mom make?

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)