X^2-81=x^2-9^2=(x+9)(x-9)
this is the answer
Answer:
#7000, #14000 and #28000 respectively
Step-by-step explanation:
#49000 to be shared in 1:2:4
49000 ÷ (1 + 2 + 4) = 49000/7 = #7000
A will get (7000×1) = #7000
B will get (7000×2) = #14000
C will get (7000×4) = #28000
6 times because 6•7=42 so it must be 6 because 7•7=49
Good luck!!