The half life is 138 days, meaning exactly half of the material will decay after this time. Use this information to find the decay factor
:

Then after 250 days, there will be

grams left.
Answer:
B.$8.98
Step-by-step explanation:
We need to determine the cost per ounce. We divide the cost by the number of ounces
3.59/16 =.224375 per ounce
Take the price per ounce and multiply by the number of ounces to determine the price of the 40 ounce jar
.224375 * 40 =8.975
Rounding to the nearest cent
8.98 for a 40 ounce jar
Answer:
$26.31
Step-by-step explanation:
Since 3 is half of 6, 3 pairs of shoes would cost half the price.
So...
52.62/2=$26.31
Answer:

Step-by-step explanation:
- 62 = - 15(x - 1) + 4
- 52 = - 15x + 15 + 4
- 52 = - 15x + 19
- 52 - 19 = - 15x + 19 - 19
- 71 = - 15x
- 15x ÷ - 15 = - 71 ÷ - 15

