HELP LOL i have no idea it might be just me

What is the nth term rule of the linear sequence below? 27 , 25 , 23 , 21 , 19 , . .

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.

To prove that angle def = angle dgf by sas, what additional information is needed? def congruent to dgf dfe congruent to dfg de congruent to dg dg congruent to gf