Pls help A jeweller paid $6 800 for 165 bracelets bought in China. The Customs Department in
his country charged him $1 360 in duty.

(i)Calculate the TOTAL cost of the 165 bracelets inclusive of duty.

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.