The amaryllis that grows 18 inches every week because if the sunflower grows 2 in. every day then it grows 14 inches in a week.
So
(x-4)^2=(x-4)(x-4)=x^2-4x-4x+16=x^2-8x+16
Its probably 4 & 875/1000, 3 & 125/1000....hope this helps
4+2.25.= 6.25
6.25x44.50 =278.125. = 278.13