The electricity rates charged by monroe utilities in the summer months are as follows: base charge = $ 8 $8 first 800 800 kwh or less at $ 0.05 $0.05/kwh over 800 800 kwh at $ 0.08 $0.08/kwh the base is a fixed monthly charge, independent of the kwh (kilowatt-hours) used during the month. a . a. find an expression for the cost function c ( x ) c(x) for usage of or under 800 800 kwh.

Yis the midpoint of xz. for each pair of points given, find the coordinates of the third point. 3. x( 5, 5), z(-1,5) 4. z( 2, 8), y(-2, 2) 7 points each xc find the indicated values. 5. b is between a and c. ab = 2x + 1, bc = 3x – 4, and ac = 62. find the value of 'x', and determine if b is a bisector. 7 points each x = bisector: yes or no? 6. m is between l and n. lm = 7x-1, mn = 2x + 4, and ln = 12. find the value of 'x' an determine if m is a bisector. x = bisector: yes or no?