To prove the SAS (side-angle-side) postulate, a. <XWY=<ZWY needs to be marked congruent. Since the segment WY=WY due to the reflexive property, we need an angle between them to prove SAS, which has to be XWY and ZWY.
Every number is getting X2 after the number, the next number will be 62
155x + 375 = 900
155x = 525
x = 3.387
Then you need to round up to 4 because 3 weeks wouldn't be enough.
So your answer should be (4)
7 times 6 is 42
Hope that helps!!
I need more information than that, to answer this question. :/