Answer:
75.391
Step-by-step explanation:
193x100/256=75.391
10 days is twice the half-life. After 5 days, can expect

grams to remain; after another 5 days, you'd be left with

grams.
Answer:
-24
Step-by-step explanation:
Since only one of the factors has a negative sign, the product will be negative.
4 · (-6) = <u>-24</u>
X^2 + 35x - 450
Factor
(x + 45)(x - 10)
(x + 45) is the length