Ethan solves this equation, as shown. Step 1: -2(x+4)= -16 - 2x+4) -16 Step 2: -2 -2 Step 3: X+4= -8
Step 4: x +4-4= -8-4
Step 5: x= -12
In which step, if any, did Ethan first make a mistake?
A In Step 2, Ethan should have divided by 2.
B In Step 3, Ethan's quotient should be 8.
C In Step 4, Ethan should have added 4 to both sides.
D Ethan did not make a mistake.

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.

Iam at home. /: i am playing video games. translate the following statement into symbolic form.