D) 36
7 - 3 + 5 = 9 × 4 = 36
Answer:
B. isosceles triangle
Step-by-step explanation:
Answer:
65536 mold spores
Step-by-step explanation:
After 3 hours , 4² mold spores are growing.
After 6 hours , 4³ mold spores are growing.
After 9 hours , 4⁴ mold spores are growing.
After 12 hours , 4⁵ mold spores are growing.
It means in every 3 hours , 4 new spores form and grow from each pre-existing spore.
⇒ After 15 hours , 4⁶ mold spores are growing.
⇒ After 18 hours , 4⁷ mold spores are growing.
⇒ After 21 hours , 4⁸ = 65536 mold spores are growing
The median is the number in the middle...so write your frequencies out, in least to greatest and find the one that falls in the middle.
