Answer:
I said 24. I hope this helps and works
7/9 = 42/54...when 42/54 reduces, it becomes 7/9...so this is proportional because proportions are nothing but equivalent fractions.
u could also check it this way...
12/21 = 15/24
cross multiply
(21)(15) = (12)(24)
315 = 288.....these do not equal and are therefore, not proportionate
440/4 = 300/3
110 = 100....not equal, so not proportionate
120/5 = 88/4
24 = 22.....not proportionate
66/82 = 99/123
0.804 = 0.804.......these are proportional
68/172 = 43/123
0.395 = 0.349......nope, not proportional
Permutations<span> refers to the </span>number<span> of unique ways that </span>a<span> set of </span>distinct<span> objects </span>can<span> be arranged (order matters). In contrast, </span>a Combination<span> is </span>a<span> selection ..... Instead of drawing trees or counting each arrangement </span>one<span> by </span>one<span>, </span>we can use combinations<span> and </span>permutations<span> to </span>find<span> our answer quickly. </span>Both<span>are also important when </span>
I believe the slope is 2/5 and the y intercept is -1!!
