Aweaver spends $420 on supplies to make wall hangings and plans to sell the wall hangings for $80 each a. write an inequality that gives the possible numbers “w” of wall hangings the weaver needs to sell in order for the profit to be positive b. what are the possible numbers of wall hangings the weaver needs to sell in order for the profit to be positive?

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: