Answer:
The total cost of the microscope=$37.50
Step-by-step explanation:
Step 1: Get the discount amount
Discount amount=Discount rate×original price
where;
original price=$75
discount rate=60%
replacing;
Discount amount=(60/100)×75=45
Discount amount=$45
Step 2: Calculate sale price
The sale price can be calculated as;
sale price=Original price-discount amount
where;
discount=$45
original price=$75
replacing;
Sale price=(75-45)=$30
Step 3: Calculate tax amount
Tax=10% of original price=(10/100)×75=7.5
Step 4: Total cost of microscope
Total cost=sale price+tax
where;
sale price=30
tax=7.50
replacing;
Total cost=(30+7.50)=37.50
The total cost of the microscope=$37.50
