Find the mean of 12 ,10,12,14,8,15,8,9,6,5

Franco wants to double the volume of the cone. what should he do?

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

For the equations below which statement is true ? -2x=14 6x=-42