The mayor refused to as to his margin of victory in the election. a.) drudgery
b.)prognosticate
c.) implored​

prognosticate

Explanation:

foretell or prophesy (an event in the future).

"the economists were prognosticating financial Armageddon"

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

give me abc and i will get it for u.