Determine each sum/difference.
1.)
3V5 – 2V5 =
2.)
8V11 + 3711 =
3.)
79 +43/9 =
4.)
2513 – 733 =
5.)
-735 + 327 + 4/5 =
6.)
V18 – 5V2 + 7=
7.)
2xV5 - 8xV2 +2=
8.)
13a²13 – 2av3 + 5av 27 – 4a2/3=

its 4 because 2 times 2 is 4, if you double the number two you get four

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

answer: its c because when it has a magnet next to it it will move away from the mixture. hope this

step-by-step explanation: