Brooke has to set up 70 chairs in equal rows, but there room for only 20 rows, how many possible rows could brooke set up

Which function is shown in the graph below?

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.