Richard buys one tooth cleaning kit for $25 and a toothbrush for $15. he spends the rest of his money on body soap. he has $80 at the start. each body soap is $5. how many can he buy?

2^y = ln 5, or   y(ln 2) = ln 5.   solving for y,   y = (ln 5) / (ln 2).   y=5

step-by-step explanation:

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.