The sum of two numbers is 90. if twice the smaller number is subtracted from the larger number, the result is 12. find the two numbers.

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

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%.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?