Answer:

Step-by-step explanation:
Half-lives are how long it takes for half of a substance to decay. If you start with a certain amount and it decays for a certain amount of half-lives, you are dividing by
, where <em>x</em> is equal to the amount of half-lives.
In order to solve this question, simply divide the starting value by 2 raised to the value of half-lives.

i'm pretty sure the answer is 52
Step-by-step explanation:


H should equal 96
because 10 - 6 equals 4
96 divided by 4 equals 24
Answer:
35% (decrease)
Step-by-step explanation:
V2-V1/V1 x 100
= 113.75-175/175 x 100
= -61.25/175 x 100
= -0.35 x 100
= -35% (change/decrease)
X - 6 1/3 < = 1 1/2 ....turn to improper fractions
x - 19/3 < = 3/2 ....add 19/3 to both sides
x < = 3/2 + 19/3 ...common denominator is 6
x < = 9/6 + 38/6
x < = 47/6 = 7 5/6....first answer choice