Explain if this student has made a mistake. Explain what the mistake was and how you would fix it. include the right answer

Mistake =>

How it can be fixed =>

(correct answer)

Step-by-step explanation:

The student solved the problem correctly up to the second step where 6 was added to both sides of the equation.

The mistake he made was in his division.

Thus, instead of dividing both sides by 8, he divided both sides by 4, which is incorrect.

Mistake =>

How it can be fixed =>

(correct answer)

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation:

b. f(x) = –√x + 3this is the correct answer