The difference between two numbers is 10. Twice the first number plus three times the
second number is 30. Find the two numbers.
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Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.

4. a single woman uses an online cash flow calculator which reveals a cash flow of 203. what does this mean?