240 days is 4 times the half-life, which means that a sample of 1000 mg will decay to

after 240 days.
Answer:
it is 2^21
Step-by-step explanation:
Answer:
22.5 yards
Step-by-step explanation:
10 costumes at 2.25 yards each is ...
10 · 2.25 = 22.5 . . . . yards of material
Answer:
Step-by-step explanation:
24/3 - 4
8 - 4 = 4
Answer:
-21
Step-by-step explanation:
- * + = -
- * - = +
+ * + = +
Here + * - = -
7* 3 = 21 and sign is -ve