Question

9. Predecessor of successor of -21 is
a) -20
b) -19
c) -22
d) -21
10. The value of [(-4)X(-9)X(-25)]+[(-2)X(-3)X(-5)] is
a) 10
b) 20
c) 30
d) 40
11. A gardener plans to plant 630 trees in 21 rows each conting the same,
number of trees, then how many trees will be there in sach row?
a) 300
12. A place is 45 metre above sea level and another place 1x 25 meter below sex
level. What is the difference of level in mexies between the two places?
a) 70
b) 20​

Answer 1

Answer:

9. -21

10. 30

11. 30

12. 20

Step-by-step explanation:

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