**Answer:**

x<5

**Step-by-step explanation:**

the greater sign will firstly be changed to = for better solving so we obtain

3+9x=4(x+7)by opening bracket

3+9x=4x+28

9x-4x=28-3

5x=25

divide all through by 5x

we obtain

x=5

the greater sign change here

which is x<5

**Answer:**

I believe it would be 7.5 miles in one hour.

**Step-by-step explanation:**

Write the problem out as a proportion. Divide 60 by 24. This is 2.5, so you then multiply the 3 miles by 2.5. There's your answer! :)

24 Minutes 60 Minutes

------------------- = ------------------

3 Miles (x2.5) 7.5 Miles

**Answer:**

B) x ≤ 0

**Step-by-step explanation:**

To figure this out, we must solve the inequality for x!

Right off the bat I can tell you it will not be A as we need a ≤ or ≥ and A has a < :D

**Given: **

2 (x + 12) - 16 ≤ 8

**Disribute the 2:**

2x + 24 - 16 ≤ 8

**Combine like terms:**

2x + 8 ≤ 8

**Subtract 8 from both sides:**

2x ≤ 0

**Divide both sides by 2:**

x ≤ 0

**^ Answer**

Hope this helps, have a nice day :))

The answer is 111

Calculate square root of 1 to get 1

Multiply 111 x 1

=111

If the entire school has 400 students, then what is a reasonable estimate for the number of students who prefer music