
+ 3x + 5
-

+ 6x + 5
-----------------------------------------
4x - 3 + 0
Answer:
k= -2
Step-by-step explanation:
you are dividing the x by -2 each time
31,
because when you divide 42 and 12 to get the other two sides you get 3.5 and
3.5+3.5+12+12=31
Answer:
35 like rap 25 dont like rap
Step-by-step explanation:
120 grams half life at 45 days would be 60 then half life of 60 in another 45 days (90 total) should be 30 grams