Question

5. How many quarter dozen pens are in a
box of 48 pens?

6. John is 15 years old. Peter is twice as
old as John and thrice as old as
Mary. What is their total age?

7.the area of a square is 36 square centimetres. find of it's perimeter

10.subtract 8 from 3(finite 9)

11. calculate 0.02×100+20

12.if 8+(the additive inverse of 10)=c,what is the value of c?

15. triangular numbers :1,3,6,10​

Answer 1

Answer:

Step-by-step explanation:

1 ] 12

where did mary come from

Answer 2

Answer. 11. solve = .002×100+20=22