Answer:
A=39 B=17
Step-by-step explanation:
12 times 4= 48 then 48-9=39
a) 39 b) 17
12x - 9
12(4) - 9
48 - 9
39
d/15 + 13
(60)/15 + 13
4 + 13
17
I) 54.2 X 94 = 5094.8
J) 36.39 X 28 = 1018.92
K) 43.73 X 74.4 = 3253.512