Sangsters sells staples in packs of 500 Staples for $1,250 and 1000 Staples for $3,000. Which pack is the better value for money
2 answers:
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To find the the expression that gives the value of 
we are going to proceed as follows:
equation (1)
equation (1)
Step 1. solve for
in equation (2)
equation (3)
Step 3. Replace equation (3) in equation (1) and solve for
We can conclude that the expression that gives the value of is:
Step 1. solve for
Step 3. Replace equation (3) in equation (1) and solve for
We can conclude that the expression that gives the value of