Does anybody know this question and the answer i need help

a ) 13.5 ml

Explanation:

It seems to be 14 ml just because of the movement of water but when it is still, It's actually 13.5 ml

personal, she chose to do it.

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer