Asnack cart sells lemonade for 2$ and hot dogs for 5$. the vendor sold 86 items today for a total of 330$ which equation is true?

Solve 3x-18=2y and 5x-6y=6 by elimination show work

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.

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?