Answer:
-11
Step-by-step explanation:
Combine like terms first: the 7n and 5n which gives u 2n
And then subtract the 8 from the -14 to give u -22 then divide by the 2
And that gives u n=-11
0.71 x 22 is the expression that works, because 1 AUD = 0.71USD.
Answer: 9.75m
3.5 + 2.1 + 1.9 + 2.25 = 5.75 + 4 = 9.75 m