When you divide me by 5 the remainder is 4. i have two digits. both digits are odd. the smog my digits is 10

Can someone me with this problem . show your work .

Convert 2000 swiss francs to dutch guilders

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.