1. Luke has a savings account with an initial balance of $380. He makes two transactions . After the two transactions , the balance of Luke's savings account is the same as the initial balance . Which of the following could be the two transactions that Luke made? *

ok

step-by-step explanation:

50- 250 is correct i did that one too

step-by-step explanation:

its 50 miles away from the starting point

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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