$2\mathrm{.}2$ Calculate the total quantities of cell phones sold.

$(2$ marks$)$

$2\mathrm{.}3$ Calculate each brand's total sales and the total sales the company realised from all brands.

$(4$ marks$)$

Note: First, calculate the sales for each brand, and then SUM these sales.

$2\mathrm{.}4$ Calculate the discount for each brand and the total discount given by the company.

$(4$ marks$)$

Note: First, calculate the discount for each brand, and then SUM these discounts.

$2\mathrm{.}5$ Calculate each brand's sales after the discount has been applied and the total sales the company realised after the discounts applied on each brand

$(4$

marks$)$

Note: First, Calculate the sales after the discount is applied for each brand, then SUM these sales.