What is the first step to simplify this expression, following the order of operations? Perform the step, and show your work. (4x2 + 8x + 15) + (x2 − x − 27) − (x + 5)(x − 7)

Determine the area of a triangle with (see picture below)

Astock has a 25% probability of increasing by $10 and a 75% probability of decreasing by $5. what is the stocks expected increase or decrease?

Which is an accurate comparison of the two data sets? the commute to work is typically shorter and more consistent than the commute home. the commute to work is typically shorter but less consistent than the commute home. the commute to work is typically longer and less consistent than the commute home. the commute to work is typically longer but more consistent than the commute home.