Answer:

Step-by-step explanation:
We have that:

Now we can find a+b

You need to turn 1/2 to .5 and 3/4 to .75 then you use this equation.
75% * 950,000 (profit)
+ 25% * -285,000 (loss)
<span>= then you subtract the numbers from the separate </span>
<span>= answer --> expected profit from the second mall</span>
Answer:
(a) Stops, turns around and starts travelling back towards home.
(b) 8 km/hour.
Step-by-step explanation:
(b) Jo travels 4 kilometres in 1/2 hour = 9 km/hour.
Answer:
4
Step-by-step explanation:
You can use the compound growth to work this out,
Firstly you need to make a multiplier for -6%;
1-(6/100) = 0.94
The you times the amount of money by 0.94 to the power of 4 because you are working out 4 years:
230000*0.94^4 = 179527.26
The answer is $179527.26,
Hope this helps! :)