1/2x -9, you take half of x so multiply 1/2 times x then you subtract the 9 after due to PEMDAS ( parentheses, exponents, multiplication & division, Add & Subtract) you follow the order of operation starting with Parentheses and ending with adding or subtracting
Answer:
3d+18
Step-by-step explanation:
I think the answer is 210.442
12 units. Hope it helps. :-)