There are 90 boys and 60 girls in the sixth grade at a middle school. Of these students, 9 girls and 3 boys write left-handed. What percentage of the sixth graders at this middle school write left-handed?

8%

Step-by-step explanation:

Firslty, we need to see the number of people in 7th grade:

90 + 60 = 150

And we need to see how many poeple are left-handed:

9 + 3 = 12

12/150

Convert it into a decimal = 12 ÷ 150 = 0.08

0.08 = 8%

Hope this help!

your answer is 23/2 - 13.5

step-by-step explanation:

7/2 evaluates to

multiply x and 4.5

multiply x and 1

the x just gets copied along.

the answer is x

x

4.5*x evaluates to 4.5x

multiply 3 and 4.5x

multiply 1 and x

the x just gets copied along.

x

4.5*x*3 evaluates to 13.5x

7/2-4.5*x*3 evaluates to

  + 8 =

the answer is

7/2-4.5*x*3+8 evaluates to

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)