Solve
-The Profit Made When $t$ Units Are Sold Is Given By

Multiple Choice

Solve.
-The profit made when $t$ units are sold is given by $P = t ^ { 2 } - 24 t + 140$ for $t > 0$ . Determine the values of $t$ for which $P < 0$ (a loss is taken) .

A) $( 10,14 )$
B) $( 0 , \infty )$
C) $[ 10,14 ]$
D) $( - \infty , 10 ) \cup ( 14 , \infty )$