Answer:
The charge of each electron is -1, so the charge of three electrons is -3. Removing something is denoted by a negative sign. The expression that represents the removal of three electrons from each of four atoms is (-3)(-4).
Step-by-step explanation:
Enjoy
c lolhahahahahahahahahahahahahahahahahahahahaha
5^n-1
5^n-1*30
B.
3(4x-2)-30=-6(6-2x)-20
12x-6-30=-36+12x-20
12x-36=12x-56
180
2 times 30 equals 60 which is an hour so 6 times 30 equals 180.
