Answer:
48 i think!
Step-by-step explanation:
80 divided by five would be 16, multiply that by 3 and you get 48. im not sure if i did it right but if you did it the other way around its way off so.
Work out 6% of $42 which equals to $2.52. The work out what 20% of $42 which is $8.40. Finally add the $8.40 and $2.52 onto $42 to give you your answer of $52.92
Go to the google search engine.. take your little fingers and copy and paste this into it. The result will pop up within its calculator.
36/3=12
pythagorus theorem to find height: 12squared-6squared=108
height=10.4
area=1/2base*height
=1/2(12*10.4)
=62.4