The sale price of every item in a store is 85% of its usual price. 1. The usual price of a backpack is $30, what is its sale price?
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2. The usual price of a sweatshirt is $18, what is its sale price?
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3. The usual price of a soccer ball is $24.80, what is its sale price?
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Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?

The cross-sectional areas of a right triangular prism and a right cylinder are congruent. the right triangular prism has a height of 6 units, and the right cylinder has a height of 6 units. which conclusion can be made from the given information? the volume of the triangular prism is half the volume of the cylinder. the volume of the triangular prism is twice the volume of the cylinder. the volume of the triangular prism is equal to the volume of the cylinder. the volume of the triangular prism is not equal to the volume of the cylinder.

Find the value of x. give reasons to justify your solutions! l, m ∈ kn