May you me with number 12 a. and b. and show work. you

(a)7x4=28
2x2=4
28-4=24
24-1=23 points
(b)20/4=7 correct answers

Pretty easy actually so because he says for every correct answer he gets he gets 4 points and he got 7 right to 4x7 = 28 so he has 28 right there then has 2 wrong answers so minus 2 from 28 you get 26 then minus another 2 cause he got 2 wrong and the = 24 then one point for unanswered so that would be 23.

Answer to question A = 23!

Then you would have to get at least 7 questions right and 3 questions wrong. Hope this helps! ;D

Answer to B = 7!