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Wed Sep 1111\newlineRates and percentages: Unit test\newlineEiko is wearing a magic ring that increases the power of her healing spell by 30%30\%. Without the ring, her healing spell restores HH health points.\newlineWhich of the following expressions could represent how many health points the spell restores when Eiko is wearing the magic ring?\newlineChoose 22 answers:\newline® 0.7H0.7H\newline[B] 130100H\frac{130}{100}H\newlinec] (310+1)H\left(\frac{3}{10}+1\right)H\newline回 H−0.30HH - 0.30H\newline[⿴囗十]+H

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Q. Wed Sep 1111\newlineRates and percentages: Unit test\newlineEiko is wearing a magic ring that increases the power of her healing spell by 30%30\%. Without the ring, her healing spell restores HH health points.\newlineWhich of the following expressions could represent how many health points the spell restores when Eiko is wearing the magic ring?\newlineChoose 22 answers:\newline® 0.7H0.7H\newline[B] 130100H\frac{130}{100}H\newlinec] (310+1)H\left(\frac{3}{10}+1\right)H\newline回 H−0.30HH - 0.30H\newline[⿴囗十]+H
  1. Identify percentage increase: Identify the percentage increase. Eiko's healing spell increases by 30%30\%.
  2. Convert to decimal: Convert the percentage to a decimal. 30%=0.3030\% = 0.30
  3. Calculate new healing amount: Calculate the new healing amount. New healing amount = H+0.30H=1.30HH + 0.30H = 1.30H
  4. Check given choices: Check the given choices.\newline- 0.7H0.7H: This represents a 30\text{}} decrease, not increase. Incorrect.\newline- 130100H\frac{130}{100}H: This simplifies to 1.30H1.30H. Correct.\newline- (310+1)H\left(\frac{3}{10}+1\right)H: This simplifies to (0.3+1)H=1.30H(0.3 + 1)H = 1.30H. Correct.\newline- H−0.30HH - 0.30H: This represents a 30\text{}} decrease, not increase. Incorrect.\newline- [⿴囗十]+H[⿴囗十]+H: This is not a valid mathematical expression. Incorrect.

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