If you round $4,329.97, $452.28, and $279.34 you would get $4,000, $500, and $300. If you add $452.28 (rounded to $500) twice to $4,329.97 (rounded to $4,000) then you would get $5,234.56 which you would round to $5,000. Then when Alexa withdrawals $279.34 (rounded to $300), you subtract $279.34 from $5,234.56 (rounded to $5,000) and you get $4,955.22 which would be rounded up to $5,000. This proves that Alexa's estimate was reasonable.
2.16
Two negatives multiplied together make a positive, so it’s simply .9 x 2.4 which is 2.16
A. 6, 12
b. 8, 9
c, 4, 4
d. 3, 7
She would need to spend 6 more. To find this answer, you divide 48 by 200 to see how much each bead costs, and then you multiply that amount by 25.
2m + 12 = 80
2m = 68
m = 34
Mikhail is 34.