Mia has $50 on a gift card to her favorite coffee shop. each time she visits the coffee shop she spends $3.75 on her favorite drink. write an equation to represent the relationship between x, the number of times she visits the coffee shop, and y, the total amount on her gift card

Step-by-step explanation:

Initial amount is $50 and each visit costs $3.75

Remaining balance is:

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step-by-step explanation:

hello,

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: