A total of 800 advertisements were sold for a certain magazine. If 40 percent of the first 150 sold were in color, 60 percent of the next 400 sold were in color, and 80 percent of the last 250 sold were in color, what percent of the 800 advertisements were in color?

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

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.