12?) [tex]5.15(8)=41.2[/tex], [tex]5.15(4)=20.6[/tex], [tex]5.15(3)=15.45[/tex], [tex]5.15(7)= 36.05 [/tex], [tex]5.15(4)=20.6[/tex], [tex]5.15(2)=10.3[/tex]
[tex]41.2+20.6+15.45+36.05+20.6+10.3=144.2[/tex] There is a remainder of 30 mins that why i choose to to up 144.2 to 146.78
13) works 7 hours plus 43mins and 28 mins which adds another hours [tex]6.75(8)=54[/tex] yet there is still 11 mins left so i divided 6.75 by 4 to get as close and got 1.6875 which i rounded to 69 cents theresore it is 55.69
