Ihave a few questions for 50 points answer them truthfully and make sure you answer all of you 1) what is the sum of –18 and 12? a. –6 b. –12 c. 12 d. 6 2) evaluate: 9 – (–12) a. 3 b. 21 c. –3 d. –21 3) which number sentence is true? a. –2.0 + (–0.5) = 2.5 b. –4.5 + 6.5 = –2.0 c. 3.0 + (–0.5) = –2.5 d. 5.5 + (–2.5) = 3.0 4) which number sentence is true? a. –8.2 + (–4.1) = –4.1 b. –8.2 + (–4.1) = 4.1 c. –8.2 + (–4.1) = –12.3 d. –8.2 + (–4.1) = 12.3 5) evaluate: -9/5 - -9/5 a. 0 b. 2 c. 18/5 d. -18/5 you s much it me a