Answer:
Lidal's price is better
Step-by-step explanation:
<u>Lidal</u>
4 for £2.04
1 for £2.04/4= £0.51= 51 p
<u>Oldi</u>
9 for £4.68
1 for £4.68/9= £0.52= 51 p
Lidal offers better price per roll
1/7 and 3/14......common denominator is 14
2/14 = 3/14
cross multiply
(14)(3) = (14)(2)
42 = 28...not correct...no, this does not form a proportion
little tip ** proportions are nothing but equivalent fractions and 1/7 does not equal 3/14...now if it would have been 1/7 and 2/14...then it would have been a proportion