$149.28
1) Since we have to calculate the taxed price, let's do it
$68.17 x(1 + 0.02) 2% is the same as 0.02
68.17 x 1.02
$69.53
2) And the other groceries were taxed even higher( 7.5%)
18.37 x ( 1 + 0.075)
18.37 (1.075)
19.75 Rounded up to the nearest hundredth
Let's sum then 69.53 +19.75 =149.28
3) Hence the total bill is $149.28