Tom and sam can finish a plowing job in two hours if they work toghether. tom working alone can do the job in 7 hours. how long would it take sam to finish the same job alone?

Ineed someone to me answer my question i have to have this done and knocked out

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read

Jo divides a candy bar into eight equal pieces for her children to share she gives three pieces to sam three pieces to leslie and two pieces to margie rose the two month old baby does it doesn't get any what fraction shows how muchw candy each of the four children got. what's the answer to my question