Isnt 0.375m bigger then 37.5mm or am i wrong?

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

The sales tax rate is 7.25%. how much tax in dollars is added on an item that costs $56.00? a. $4.06 b. $7.25 c. $14.50 d. $60.06

True or false look at the picture pls : /