please answer

Both Eliud and Peres have 10 hours per day to complete front-end and back-end tasks. It takes Eliud 0.5 hours to complete a front-end task and 1.5 hours to complete a back-end task. It takes Peres 1 hour to complete a front-end task and 3 hours to complete a back-end task. Eliud has been assigned to complete 8 front-end tasks and 2 back-end tasks tomorrow. How many front-end tasks does Eliud need to give up if today, his manager requires him to complete an additional back-end task tomorrow? OO 0 0.33 (ie., one-third) O 0.5 O 1.5 0 3