Help me with this problem

Factor the monomial completely 42a3b3

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

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air