A = b x h x 1/2
a = 30 x 31.5 x 1/2
a = 15 x 31.5
a = 472.5
So we do simple addition and get
81,900,000
if you mean simplest form as in scientific notation then
scientfic notation means (a number between 0 and 10)times 10^xpower so
8.19 times 10^7 or on online test
8.19e+07
Remember: Please Excuse My Dear Aunt Sally (PEMDAS)
In solving algebraic expressions, there is an order in which to solve it.
<span>1) perform the operation inside the </span>parenthesis<span> first </span>
<span>2) then perform the operation with the </span>exponents
<span>3) apply </span>multiplication<span> and </span>division<span> from left to right of the equation.</span>
<span>4) apply </span>addition<span> and </span>subtraction<span> from left to right of the equation.</span>