Been struggling with these problems can anyone help me 19,21,23,25,27,28,30

Mathematics

2 answers:

Vlada [557]4 years ago

6 0

19- would be -6+8 which equals 2

21- 8(2.1)-12 which equals 16.8-12 which is 4.8
23- 17 divided by 10 equals 1.7

FrozenT [24]4 years ago

3 0

21 = 4.8
8 x 2.1 = 16.8 - 12 = 4.8

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