Ineed to find the base of a triangle with a height of 8.25 inches. the area is 66 inches squared. is something wrong with my math?

Your answer is correct, don't worry! To check your answer, just plug in the answer you got with the variable you are supposed to find. Multiplying by a half is like dividing by two. So, 16 divided by 2 is 8. 8 multiplied by 8.25 is 66. I'm jealous of your handwriting.. XD

You got the right answer!

My math seems a little different though

I would set up the equation to be 66= (base*8.25)/2

multiply 66 by 2 = 132

132= base*8.25

divide both sides by 8.25, which equals

base= 16

* this symbol means multiply!

Hope this helps!