What’s 400/4+17times parentheses 9mines 6 parentheses equal

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

Can someone me i’m confused. will give brainliest and a whole bunch of points

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?