Tracy has 94 1/4 inches of String that she uses for making bracelets. she uses 7 1/4 inches of string to make each bracelet. How many bracelets can Tracy make

13 bracelets

Step-by-step explanation:

She has approximately 94 inches of string and she she uses approximately 7 inches of string for each bracelet

she can make 94 ÷ 7 = 13 bracelets with the string she has.

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: