значение выражения: -3а, если а=-1,7

add the plural  the plural ending where necessary^

a. book binding               d. round- up

b. son-in-law                     e. grab-bag

c. tablespoon                     f. late-comer

g. man-eater                           k. moonlight

h. commander-in-chief        l. mill stone

i. bathing beauty                   m. jet engine