**Answer:**

64.8

**Step-by-step explanation:**

**Step-by-step explanation:**

you cannot divide 18 by 3 ? normally you should not even need a calculator for this.

18/3 = 6

**Answer:**

**Step-by-step explanation:**

Let

be the temperature of the body

hours after 1:30 PM. Then

and

.

Using Newton's Law of Cooling,

, we have

. Now let

, so

, so

is a solution to the initial value problem

with

.

By separating and integrating, we have

.

≈ 95 minutes. Thus the murder took place about 95 minutes before 1:30 PM, or 11:55 AM.

**Answer: 2 7/9**

**Step-by-step explanation:**