Aplane traveled 5185 miles with the wind in 8.5 hours and 4845 miles against the wind in the same amount of time. find the speed of the plane in still air and the speed of the wind.

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%.

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.