Va rog! Am nevoie urgent! Dau coroana! 1,2!

Ex1
A) A citit -84+84:2=84+42=126pg
I-a mai rămas de citit-32pg
Are cartea- pg
1) 126+32=158pg are cartea-
Ex1
B)
A citit-63+63:3=63+21=84pg
I-a mai rămas- 32pg
Are cartea- pg
1) 84+32=116 pg are cartea-
Ex2a)
36
22
19.5
B)
47
42
44
C)
30
39
51