Which of the following equations is of a parabola with a vertex at (1, -1)?

y = (x - 1)2 - 1
y = (x - 1)2 + 1
y = (x + 1)2 - 1
y = (x + 1)2 + 1

Astore manager records the total visitors and sales, in dollars, for 10 days. the data is shown in the scatter plot. what conclusion can the store manager draw based on the data? question 3 options: an increase in sales causes a decrease in visitors. an increase in sales is correlated with a decrease in visitors. an increase in visitors is correlated with an increase in sales.

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

What percent of 18 is 24? and plz explain thx.