Sonja wants to cover the rectangular floor of her closet with tile. The floor is 2 1/2 feet by 3 1/2 feet. She wants to use the fewest tiles possible and doesnt want to cut any times. The tiles come in three sizes: 1 foot by 1 foot, 1/2 foot by 1/2 foot, and 1/4 foot by 1/4 foot. Choose the tile that sonja should use. What is the area of the closet floor?

7

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:

c

-by-step explanation:

it would be c