Simplify and give term, coefficient, and constant for each one
3m - 1 + 4m -3x
7(3+2x)-4x+5
3x+4(x-3)

7m-3x-1

10x+26

7x-12

Step-by-step explanation:

3m - 1 + 4m -3x

sum terms by the same variable:

3m+4m=7m

we have:

7m-3x-1

7(3+2x)-4x+5

apply the distributive property:

7*3+7*2x-4x+5

we have:

10x+26

3x+4(x-3)

apply the distributive property:

3x+4*x-12

we have:

7x-12

figure c

step-by-step explanation:

hope this .

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: