How about this simply thing .

RP=16

Step-by-step explanation:

In a parallelogram, the intersection point of the diagonals represents the midpoint of each diagonal. Knowing this, we can say that RS=SP.

If RS=8, then SP=8.

RP is equal to RS + SP, and 8+8 is 16.

I hope this helps! Please comment if you have any questions :)

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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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