What is 1/2 times 0.4 rounded to the nearest tenth or hundredth

If m 17 27 90 63 ** picture is attached

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

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?