A consultant needs to make at least $800 this week. She earns $80 for each
new written piece and $40 for each review. Which of the following inequalities
represents the possible combinations of reviews and new written pieces that
she must complete?
A- 80x+40y<800
B- 80x+40y>800
C- 80x+40y<_800
D-80x+40y>_800