12, because 150/25=6x2 is 12
According to the question statement, the total sum of students is 221, which includes the students that ride on bus and the students that ride in a van.
The students that ride in a van are five, the students that ride on bus are 6 times s which is the product of the number of buses and the number of students that are on each bus.
Write all this information into an equation, this way:

Now, solve the equation for s to find the number of students that are on each bus.

There are 36 students on each bus.
D
graph becomes slimmer, so definitely be multipled 1/2
The answer to your question is thunderstorms.
The picture is filled with a lot of dark clouds, in which there will be a probability for thunderstorms to occur. We all know that when there is lightning, thunder will occur after it. With the photo given, there will be the probability of thunderstorm with heavy rain.
The answer is C.
If you multiply the top equation by 3 the x variable would become 2x * 3 = 6x
Multiplying the second equation by 2 the x variable becomes -3x * 2 = -6x
You would then have 6x - 6x, which would eliminate the x variable.