Question

p l e a s e s o l v e t h i s​

Answer 1

Answer:

40. a. -2

Step-by-step explanation:

${3}^{x - y} = 9 \\ = {3}^{x - y} = {3}^{2} \\ = x - y = 3 \\ similarly \: by \: solving \: the \: both \: we \: get \: the \: answer$

Answer 2

Answer:

41. c)

42. a)

43. b)

44. I don't know

45. b)