There are 81 rolls of ribbon in each of the 9 boxes. I can’t see all the options so I hope this helps!
Add 509 and 12:
509
+ 12
____
521
509 + 12 = 521
Use Math-way it’s an app very helpful
A triangle has a total angle of 180 degrees. Since we know
that angle X = angle N = 20 degrees and angle Y = angle M = 75 degrees,
therefore angle Z or angle L is equal to:
angle L = 180 – 20 – 75
<span>angle L = 85
degrees</span>
Therefore w is:
angle L = 5 (w – 2)
5 (w – 2) = 85
w – 2 = 17
<span>w = 19</span>
