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The answer is most likely D

Step-by-step explanation:

Because it cant be A or B because the number 80 has nothing to do with the problem so that's the process of elimination then there's C which it couldn't be C. because we already know the price of the large pizza so there shouldn't be any x behind the 9.25 and.

So yea the answer is D. since we don't know how many toppings they are going to purchase with that extra 0.80

hope I helped and that you understand

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D

Step-by-step explanation:

x equals the amount of toppings so it needs to have a coefficient of .8

We added 9.25 because that is the cost of the plain pizza.

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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