Oh, dude, it's like super easy. So, seven and one half cents is basically 7.5 cents in decimal. You just drop the "and" and convert the fraction to a decimal, like no big deal. So, yeah, 7.5 cents is your answer.
0.025
$0.225 22.5 cents
It is 0.5 cents.
A half which is 1/2 is 0.5 as a decimal
One and a half cents in decimals is 0.015
50 and a half cents as a decimal is 0.505
55.5 cents.
0.025
55.5 cents or $.555
0.025
6.5
42.5
$0.225 22.5 cents
14.5
16.5¢ or $0.165
Either $0.015 or 1.5c
32.5 cents, or $0.325