Please solve the trigonometric ratios below:

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)