Based on information found in this table of contents, what is the subject of this book?
• the life cycle of coral reefs
the many benefits of coral reefs
O the dangers faced by coral reefs
the fish that live in coral reefs

Explanation:

So what I would say the subject is about the ocean specifically about the coral reefs in the ocean. It could be like the national graphics,science world one of the more science books. So Science is the class and Coral reef is the topic.

OK hope this helps!

i believe it’s c.) the dangers faced by coral reefs

Explanation: i took the test..?

a lot

explanation:

this is the answer , p = 1 + (1/10)x

step-by-step explanation:

we have,

at sea level pressure is 1 atmosphere (i.e at x =0, p0=1 atmosphere)

at depth 23 meters , pressure = 3.3 atmosphere

since the pressure increases at constant rate as the depth increases, so we can write a relation as:

p =p0 +   kx   , where p is the pressure  , p0 is the initial pressure, x is the depth and k is constant rate of increasing.

to find constant rate k, plug p = 3.3 , p0 = 1 and x= 23 meters

we get,

  3.3 = 1 + k * 23

k = 2.3 / 23   = 1/10

so we can write the function formula as:   p = 1 + (1/10)x