Find the area of the triangle below be sure to include the correct units in your answer 6 ft 15 ft 21ft

Answer for 10 points show work you guys in advanced < 3

Twelve less than a number is at most 20

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?