Trigonometry
Objective: Use trigonometry functions to find the area of triangles.
In an isosceles Δ, the two equal sides each measure 26 meters, and they include the angle of 31*. Find the area of the isosceles triangle to the nearest square meter.

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

Need this at the city museum, child admission is 6 and adult admission is 9.20. on tuesday, 132 tickets were sold for a total sales of 961.60. how many adult tickets were sold that day?