Answer:
Total for all the movie tickets:$31
Total for the sodas:$5.97
Total spent on the evening:$42.96
3 times 96 = 288
3 times 204 = 612
612-288=324
which is approximately $300
(-1,1)
D0 means starting at the origin of Z in this case, so doing the same thing as always, multiply the scale factor -1/2 to the coordinate of Z giving you (-1,1) and this is the final answer because the origin is (0,0) so doesn’t change anything