18. [-/1 Points] DETAILS Math 110 Course Resources - Limits & Continuity Course Packet on limits at infinity - Limits & Continuity Course Packet on limits at infinity of rational functions Evaluate lim -30x10 - 55x + 42 x -+0 86 + 63x5 If you need to use co or -co, enter INFINITY or -INFINITY, respectively. Submit Answer 19. [-/1 Points] DETAILS Math 110 Course Resources - Limits & Continuity Course Packet on limits at infinity - Limits & Continuity Course Packet on limits at infinity of rational functions The Penn State Math Department's total costs in dollars for producing x units of their award winning calculus tutorial videos is C(x) = 800 - - 32x5 52x 1 - 8x5 x2 + 84x - 62 What is the limiting value of the total cost when the number of units produced grows infinitely large? dollars