The profit, in dollars, of a small business can be modeled by the function P (x) = 0.3x^2+ 7x – 40, where x is the number of
units sold. How many units need to be sold for the business to make
a profit of $60?

Iwould say d but i am not 100% positive

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post