£800 is invested for 3 years at 2% simple interest per year. work out the total interest. show working out pls I will mark the brainest

Sandy works at a clothing store. she makes $7 per hour plus earns 15% commission on her sales. she worked 75 hours over the last two weeks and had a total of $2,566 in sales before taxes. which of the following is closest to how much she will earn in hourly wages and commission for those two weeks?

What value of x is in the solution set of 4x – 12 s 16 + 8x?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.