P = 4, a = 5, r = 2, n = 10 Evaluate the algebraic expression a – r.

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

Find the volume of the described solid. the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x. a) 441b) 147c) 864d) 882

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be