**Answer:**

<em>**B. 86 degrees**</em>

**Step-by-step explanation:**

**Given the following angles:**

m∠NOQ = 110

m∠NOP = 24

**Using the addition postulate:**

m∠NOQ = m∠NOP + m∠POQ

110 = 24 + m∠POQ

m∠POQ = 110 - 24

m∠POQ = 86

<em>**Hence the measure of m∠POQ is 86 degrees**</em>

By using **differential equations'** concept, we get that **there is no sugar** in the **beginning**.

<h3>What is a differential equation?</h3>

A **differential equation** is an equation that connects the derivatives of one or more unknown **functions**.

Given:

Pure water = **2840 litres **

sugar = **0.01kg per liter**

Rate of **sugar entering the tank** = 4liter/min

New **solution drains out** at the rate = 4 litre/min

**To find:** sugar in the beginning.

Finding:

(a) In the beginning, the **tank **contains only pure water and** no solution** of water with **sugar**.

Hence, the sugar is null **for t = 0.**

To learn more about **differential equations**, refer to the link: brainly.com/question/1164377

#SPJ4

**Answer:**

√(-2)²+12+14=√16+14=4+14=18

**Step-by-step explanation:**

Here are the steps to solving:

1) Write out problem 3.6+7.2k <25.2

2) Subtract 3.6 7.2k <21.6

3) Divide by 7.2 k <3

So k<3 would be your answer