Answer:
-4
Step-by-step explanation:
Since the total score <em>I</em><em>n</em><em>c</em><em>r</em><em>e</em><em>a</em><em>s</em><em>e</em><em>d</em><em> </em>by eight than the two matching cards must have been -4.
(total of four cards) + (two matching cards) = total score
(total of four cards) + (two cards × -4) = total score
(total of four cards) - 8 = total score
* take away two matching cards by adding 8 on both sides*
(total of four cards) = total score + 8
Answer:
(1) 9n = 56
<u>n = 6</u>
(2) 10 + 4y = 38
<u>y = 7</u>
(3) 3x + 8x = 55
<u>x = 5</u>
(4) 6m + 20 = 8
<u>m= -2</u>
(5) 17 - 3a = 23
<u>a = -2</u>
(6) 10x + 4 = 6x + 16
<u>x = 3</u>
(7) 4(x - 2) + x = 17
<u>x = 5</u>
(8) 2(x + 3) + 3x = x + 22
<u>x = 4</u>
(9) <u>D. 10</u>
(10) -2(3x - 2.4) = 3(3x - 2.4)
im not sure about this equation
<em>Hope this helps</em>
<em>-Unknown </em>
<u></u>

So, an. X is 155°.
Hope this will help you.
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1st digit 1 of 7 numbers
2nd digit 1 of 6 numbers
3rd digit 1 of 5 numbers
4th digit 1 of 4 numbers
5th digit 1 of 3 numbers
7*6*5*4*3 = 2520 combinations
Answer: B I think I hope it helps
Step-by-step explanation: