Which number produces a rational number when added to 0.5

Adaylily farm sells a portion of their daylilies and allows a portion to grow and divide. the recursive formula an=1.5(an-1)-100 represents the number of daylilies, a, after n years. after the fifth year, the farmers estimate they have 2225 daylilies. how many daylilies were on the farm after the first year?

What is 1.5% of 120 or what number is 1.5% of 120

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.