Solve the following: 1) The original cost of an umbrella was $28 but is now on sale for $21. Find the percent of the discount.

What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x – 1)?

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.

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?