Answer:
Pauline used the wrong base to compute the discount.
Step-by-step explanation:
Pauline is wrong because she figured the discount on £126 instead of the original cost. The actual discount is figured on the original cost, so £126 represents 60% of that cost.
The original cost is perhaps best found by dividing the sale price by 0.60 to get £210. Then we can check by computing the discount as 40% of £210, or £84, leaving a sale price of £210 -84 = £126.
2/3 cup of peanuts because when you convert fractions to decimals, the decimals that are converted depends on which fraction is greater. 2/3 converted to a decimal would be 0.66 and 1/2 would be converted to 0.50
Exact form: 17/12
mixed number form:1 5/12
C because the y intercept is 0