Answer:
165
Step-by-step explanation:
Your equations are right. just use the substitution method to solve. substitute y because both have that on one side
it'll look like 40x+30=30x+60.
then just get x in one side. I showed my owrk in the photo
Answer:
110
Step-by-step explanation:
132.
if it is 4 or lower it goes down if its 5 or more u round up. see its simple
Answer:
The answer is A. the range is the set of all real numbers
The volume of a cone with base radius <em>r </em>and height <em>h</em> is

What happens when we scale by <em>k </em>?
Let <em>V'</em> be the volume of a cone with radius <em>rk</em> and height <em>hk</em>
