Answer:
solution e. (0,0)______b. (-2,-10)_______c. (5, -12)__________of
2x + 5y < 10
Step-by-step explanation:



<span>1. 115.9284096. We assume you are converting between </span>grams CoF3<span> and </span>mole<span>. This compound is also known as Cobalt(III) Fluoride.
</span>2.
<span>Na = 23 </span>
<span>S= 32 </span>
<span>O= 16 </span><span>
3. </span>2355.2
4. 7570.2
5. 8.08 g/mol * 1.2 mol = 120 g
6. 0.024083482462885
7. 455176242.02054
srry this is all i can answer
The three scores are 86, 74, and an unknown score x. The average (i.e. the sum divided by how many there are) is 80, so we have

Multiply both sides by 3 and you get

Subtract 160 from both sides to get

Note: you could solve this exercise very quickly if you notice that the two numbers, 86 and 74, are symmetrical with respect to 80, which is the average. So, the third number must be the average.