Using red, blue, and purple butterflies how do you get white ones

answer:

if you want to get white ones you are going to have to let the other ones have other   butterflies and you maybe get the ones you want.

explanation:

the answer is definitely c.

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