Question

Pls can someone give me the answers

Answer 1

Step-by-step explanation:

1.

x=5

y=4

2.x=4.2

y=19.8

3. x=16

y=70.4

4. a=28

b=25/7

5.a=20

b=18

6. a=51

b=75

7. x=30

y=21

8.a=27

b=6

hope it helps:)

ignore that fig '-'