5 A British telecommunications company offers the following roaming
data package to its customers: a flat fee
of £25 plus £10 per gigabyte of data
a Express the total cost. C as a function
of the number of gigabytes of data (g).
b What values of g do not make sense in
this context?
c State the notation that could be used
to find the roaming cost for a trip where
14 gb of data is used? Calculate
this value.
d State the notation that could be used
to find the number of gigabytes of data
one can use for a total bill of £100.
Calculate this value.
I