Answer:
7
Step-by-step explanation:
if you count up, from -2, to 5, its seven.
-2, -1, 0, 1, 2, 3, 4, 5, 6, 7
distance between -2 and 5 on a number line is 7
distance between 3 and 3 is 0
7+0 = 7
He can only make 9
He will have 4 cards left over so it will not be enough to make another stack.
1/105
Total Marbles= 2+6+7=15
2/15 * 1/14 = 2/210 = 1/105
(It becomes 1/14 since you take out own red marble)
-10
x+75=180-(x+125)
2x=-20
x=-10
I’m. Not sure
But u can try to see how each number goes to each pattern like -2 to -8 is to add -6
