B
Hope I helped thanks so much!
(3x10^8) x 8 = 2400000000
OR 2.4x10^9
Answer:
54 sq ft
Step-by-step explanation:
Area of a triangle is given by :
Area = (1/2) x base x height
in our case, if we assume the base of the right triangle to be 12 feet, then the height is 9 feet
Substituting this into our equation
Area = (1/2) x 12 x 9
Area = 54 sq ft
38 because 80% of 20 is 18 and then add the 2
