Four and eight twelfths minus three and two sixths equals blank

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Which expression will have the same sum as 3_8 + 1/4?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers