You were using it for 6 hours because 70-25 is 45 and if you divide 7.50 and hour and 45 it’s 6
A=P(1+r/n)^(nt) where n= number of times compounded yearly, t= time and p= principle
A=723(1+.029/2)^(2*23)
A=$1,401.95 So C
You can’t solve this, not enough information
If you add 2.25 + 4.2 = 6.45 pounds.
If you are estimating then it becomes 6.5 pounds approx.
Hope this helps.
