What is the area of a quadrilateral with vertices a, 6), (1,-6).(-2,0), and (1.0)? ​

Which triangles area would be calculated using the trigonometric area formula

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula c= r/1.8 - 273, what is the temperature in celcius corresponding to r degrees rankine.

What is the product? (x2+3y+7) [yy+1)