17) 11.1
18) 21.4
19) 30.5
20) 16.5
21) 26.5
It's A. First of all, one of the only 2 things in math that will NEVER be negative is distances/lengths and times. You have a distance here, so because one of your 2 numbers is negative, you have to take the absolute value of the difference. -8-5 = -11, but the absolute value of that is 11. Put the numbers on a number line and count the units between -8 and +5 and there are 11 units between those 2 numbers.
<em>Answer:</em>
<em>2</em>
<em>Step-by-step explanation:</em>
<em>The factors of 72: 1, </em><em>2</em><em>, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72</em>
<em>The factors of 98: 1, </em><em>2</em><em>, 7, 14, 49, 98
</em>
<em>Your greatest common factor is 2.</em>
<em>Hope this helps. Have a nice day.</em>
