You earn $8 an hour doing cleanups and $12 an hour painting. last spring and summer, you worked a total of 400 hours and earned $3,800. how many hours did you spend doing cleanups? how many hours did you spend painting?

Step-by-step explanation:

Let p represent the number of hours spent painting. Then the hours spent doing cleanups can be represented by 400-p, and total earnings are ...

  12p +8(400 -p) = 3800

  4p +3200 = 3800 . . . . . . simplify

  4p = 600 . . . . . . . . . . subtract 3200; next, divide by 4

  p = 150 . . . . . . . . . . . hours spent painting

  (400-p) = 250 . . . . . hours doing cleanups

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9