Every day of the week Sam's Swim Shop offers a different deal to its loyal customers. If the total price Lori paid was $52 and it normally would cost $78, what was the discount percent Lori received? (Round your answer to the nearest tenth)

The original price is $78 and it was discounted to $52

$78 - $52 = 26

$26 is %33.33 of 78 so i rounded it to the nearest tenth which is 30

The discount percent Lori received was %30 percent

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b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

it is x equals 3   plese mark me really need it

step-by-step explanation: