1) 0.74 - 0.45 = ) 0.53 -0.24 = ) 4.77 - 2.14 = 1.83 - 1.55 = 0.77 -0.49 = 7) 0.80 -0.46 = 8) 0.38 -0.05 = 9) 6.20 - 2.74 = 10) 6.73 - 1.98 = 11) 4.5 - 4.5 = 12) 6.04 - 2.86 = 3.58 -1.75 = ​

Pls! does anybody know a shortcut for answering these types of questions in the future?

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

List the sides of δrst in in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°