For this, we just need to solve the function when x = 4. So firstly, plug in 4 in the x variable.

Next, solve the exponents and multiplications: 
Next, combine everything on the right side of the equation, and your answer will be y = -4
Answer:
210
Step-by-step explanation:
you can do 200 + 10 = 210
You can also do 200 + 1 x10
Answer:
20%
Step-by-step explanation:
1/5 of 1 hour = 20 minutes
so 1/5 = 20%
25% + 20% = 45%
0.35 = 35%
45% + 35% = 80%
100% - 80% = 20%
Answer = 20%
Hope this helps!
Answer:
1017.36 square miles
Step-by-step explanation:
Since the diameter of a circle is twice the radius, the radius of this circle is 36/2=18. Since the area of a circle is
, the area of this circle is:

Hope this helps!