Arm exercises equivalent to machines?

hstylesishot

I no longer have access to the gym but I would do..

30 reps on the overhead press 25 lbs
30 reps on the chest press 25 lbs
30 reps on the lat pulldown 37.5 lbs
everyday.

I don't want to lose any arm muscle and I like the way my chest looks too, so what are some equivalent exercises I can do to work the same muscle groups, possibly more?
Also, I have 8lb dumbbells so how many reps would I have to do of the exercises so that it is equivalent to the machines?
Thanks so much!!

JustMe2691

Look on bodybuilding.com for those exercises and they will give you either alternates or at-home versions you can do.