Answer:

Step-by-step explanation:
by factorising ;
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=》

=》

=》

<em>i</em><em> </em><em>hope</em><em> </em><em>it</em><em> </em><em>helped</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>
5-2x=7-5x
-2x+5x=7-5
3x=2
X=2/3
Answer: 21/100
Step-by-step explanation:
Number of green marbles = 21
Number of blue marbles = 35
Number of red marbles = 18
Number of yellow marbles = 26
Total number of marbles = 100
The probability of choosing a free marble will be:
= Number of green marbles / Tot number of marbles
= 21 / 100
8*100=20*x
800 =20x
40 =x
40 items are in the basket