What is the result of squaring 19?

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?

Somone me i want to know what 18 hours out of 24 hours in a fraction

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)