Answer:
5n
Step-by-step explanation:
cost of one helmet = $5
let 'n' be the number of person that is n=1,2,3,4........
note that the value of n is always a natural number
therefore the expression = 5n
where 5 is the cost one helmet
n is the number of persons
Answer: g=5
Step-by-step explanation:
you cannot multiply any of the numbers above by another to get 12, the factors of 12 would be 1,2,3,4,6,12 1x12= 12 2x6=12 4x3=12
Answer:
66 can be made
1m left
Step-by-step explanation:

Ribbons that can be made= 66

length used= 99m
length remaining= 100m- 99m= 1m