Question

Answer 1

a: 64.5

b: =87,5

c: =20

d: =18

Answer 2

`[46]`

`a, 19% + 45,5 % = 0,645`

`b, 17,5% xx 5= 0,875`

`c, 80,2% - 60,2% = 0,2`

`d, 54% : 3 = 0,18`.