What is the y intercept

Alayna wonders how much water it would take to fill her cup she drops her pencil in her cup and notices that it just fits diagonal the pencil is 17 cm long and the cup is 15 cm tall how much water can the cup hold

Need me know if option a, b,c are wrong so ik its d

Abag contains 50 jolly ranchers of 30% of the jolly ranchers are green how many green jolly ranchers are in the bag