Answer:

activity no.1

divide the number into 2 until you got zero or 1 the remainders will be the binary

example:27 divided by 2 = 13r.1

13 divided by 2 = 6r.1

6 divided by 2 = 3r.0

3 divided by 2 = 1r.1

1 divided by 2 = 0

so the binary conversion of 27 is 11010

activity no.2

1mb = 1000kb

1gb = 1000mb