Write the fraction as a percent, if nessisary round to the nearest tenth of a percent 4 1/5
a: 4.1%
b: 420%
c: 42%
d: 4.2%

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)

What is the area of the shaded sector?

Solve 2x − 1 = 11 for x using the change of base formula log base b of y equals log y over log b.