1459 Г) Д) Е) Ж) З) Помогите плиз!

Question

1459
Г)
Д)
Е)
Ж)
З)
Помогите плиз!

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Answer 1

3.5m+m=9.9
4.5m=9.9
m=9.9:4.5
m=2.2

4.2p-p=5.12
3.2p=5.12
p=5.12:3.2
p=1.6

8.2t-4.4t=38.38
3.8t=38.38
t=38.38:3.8
t=10.1

(10.49-s):4.02=0.805
10.49-s=0.805*4.02
10.49-s=3.2361
s=10.49-3.2361
s=7.2539

9k-8.67k=0.6699
0.33k=0.6699
k=0.6699:0.33
k=2.03