Answer:
B. 50 times greater
Step-by-step explanation:
Given;
size of phytoplankton = 2 × 10⁻⁶ in
size of sand grain = 1 × 10⁻⁴ in
Determine how many times longer the grain of sand is than the phytoplankton.
Divide the sand size by the phytoplankton size, to find out how much greater the sand is.
This can be done by equating it as follows;
2 × 10⁻⁶ (y) = 1 × 10⁻⁴

Therefore, the grain of sand is 50 times greater than the phytoplankton
B. 50 times greater
Answer:
B.
Step-by-step explanation:
It only has one base and it's a pentagon. Therefore, it's a pentagonal pyramid.
Answer:
33 ¹/₃ seconds
Step-by-step explanation:
Since the dog is 30 - 24 = <em>6 m/s faster than the cat</em>, that means that the dog is <em>6 meters closer to the cat each second</em>.
So, that gap will close in 200/6 = 33 ¹/₃ seconds.
A 9 kg bag of mangoes for $12 is.
Given is the bulk unit rate of the mangoes.
Let’s solve for the unit rate of each mango and its price.
=> Let’s analyze the given situation.
It is said that in 9 kilograms of bag of mangoes, the costs of all of it is 12 dollars.
Find how much the cost of 1 kg bag of mangoes is.
=> 12 dollars divided by 9 kilograms to get the value of 1kg bag of mangoes
=> 12 / 9 = 1.3
Thus, the unit rate is 1.3 dollars / kg
$9.00 would be your answer
Tip: If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up and if the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down.