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a)
10%- 12kg
70%- 84kg
b)
24zl- 10%
12zl- 5%
c)
20%- 5kg
100%- 25kg
d)
po podw. 82zl
po obniz. 64zl
B.
8/100 40/100 105/100 5/100
b) 72% 2.5% 107% 230%
C.
a) 100%=55
10%=5.5
20%=11
c)
100%=10
10%=1
30%=3
130%=13
mam nadzieje , ze chociaz troche pomoglam ;)