An IT shop sells laptops, tablets and mobile phones. The composite bar chart shows information on sales over the last three year
800
a) How many laptops were sold in 2017
700
100
600
500
Number sold
b) Work out the total number of mobile
phones sold in the 3 years.
120+220+260=600
400
300
200
100
c) Which of the items had the greatest
increase in sales over the 3 years?
Give a reason for your answer.
tablets had the greatest increase in
salesover 3 years.

How do you determine if an ordered pair is a solution to a given equation?

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.

The result of which expression will best estimate the actual product of (-4/5) x (3/5) x (-6/7) x (5/6) (i need an expression not an answer)