To make one cheese sandwich, Tina uses one bread roll and two cheese slice Pack of 15 bread rolls - £1.91
Pack of 20 cheese slices - £2.23

She is going to buy enough packs to have exactly twice as many cheese slices as bread rolls make more than 100 cheese sandwiches.
Work out the least amount she can spend.

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

27 +27 or 27times 2=54

the diffrence is 0