I will give brainliest if you answer properly.

See below

Step-by-step explanation:

a)

But note, as sine does represent the value, is also solution

Therefore,

This is the solution for , recall the unit circle.

Note:

b)

Once

As

c)

Therefore,

The solutions are

the homeowners insurance cost for a 115,000 wood frame house is 80,500.

step-by-step explanation:

it is given that the coverage rate for wood frame house is 0.7.

the value of wood frame house is 115,000.

.

homeowners insurance cost for a 115,000 wood frame house is

therefore the homeowners insurance cost for a 115,000 wood frame house is 80,500.