a grocery store manager buys boxes of crackers for $4.50 each. she marks up the cost by 30% to get the…

a grocery store manager buys boxes of crackers for $4.50 each. she marks up the cost by 30% to get the selling price. which expressions can be used to find the selling price of each box of crackers? select all the correct expressions. a (0.3)(4.50) b (0.7)(4.50) c (1.3)(4.50) d 1 + (0.3)(4.50) e (1 + 0.3)(4.50)

a grocery store manager buys boxes of crackers for $4.50 each. she marks up the cost by 30% to get the selling price. which expressions can be used to find the selling price of each box of crackers? select all the correct expressions. a (0.3)(4.50) b (0.7)(4.50) c (1.3)(4.50) d 1 + (0.3)(4.50) e (1 + 0.3)(4.50)

Answer

Explanation:

Step1: Understand Markup Concept

The cost price (CP) is $4.50. Markup is 30%, so the selling price (SP) is CP plus 30% of CP. Mathematically, SP = CP + 0.3×CP.

Step2: Simplify the Formula

Factor out CP: SP = CP×(1 + 0.3) = 1.3×CP or (1 + 0.3)×CP.

Step3: Analyze Each Option

  • Option A: (0.3)(4.50) calculates only the markup amount, not the selling price. Incorrect.
  • Option B: (0.7)(4.50) is not related to the markup calculation. Incorrect.
  • Option C: (1.3)(4.50) is equivalent to 1.3×4.50, which is correct as 1 + 0.3 = 1.3. Correct.
  • Option D: 1+(0.3)(4.50) adds 1 to the markup amount, which is incorrect. Incorrect.
  • Option E: (1 + 0.3)(4.50) is the same as 1.3×4.50, which is correct. Correct.

Answer:

C. ((1.3)(4.50)), E. ((1 + 0.3)(4.50))