Find an expression in simplest form for the verbal description The total pay for twelve hours of work at a base of p per hour plus a temporary raise of $3.50 per hour

Total pay=12p+42

Step-by-step explanation:

From the information given, the total pay for twelve hours of work would be the result of adding the base per hour plus $3.50 that is the temporary raise and multiplying this for the number of hours. Based on this, the expression in simplest form is:

Total pay=(p+3.50)*12

Total pay=12p+42

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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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