Answer: d. 
Step-by-step explanation:
Let the number of ounces of clay that Elisa uses to make one vase of either size denotes by 'c'
Given : To make a small vase, Elisa uses no more than 4.5 ounces of clay.
i.e. 
Also, To make a large vase, she uses at least 12 ounces of clay.
i.e. 
Then , the compound inequality represents the number of ounces of clay that Elisa uses to make one vase of either size will be :-

Using an exponential function, it is found that the value of Yong's investment account after 7 years is given by:
(C) $2363
<h3>What is an exponential function?</h3>
It is modeled by:

In which:
Her account was worth $2000 initially, and it increases by 10%, percent every 4 years, hence, it is modeled by:

After 7 years, the amount is:

Hence option C is correct.
More can be learned about exponential functions at brainly.com/question/25537936
Answer:
ummm
Step-by-step explanation:
what's that???
quiet didnt get it lol¿
Answer:
Two angles are called complementary when their measures add to 90 degrees. ∠1 is 60 degrees ∠2 is 30 degrees so if you add it up, the answer is 90 degrees.
∠4 + ∠3 = answer has to be 90 degrees to call it a complementary angle
30 degrees + 60 degrees = 90 degrees
Answer: y = 63/x
Step-by-step explanation:
This is variation, now to the question.
y <> 1/x --------------------1
the <> is called the constant of proportionality, which will now be replaced by a constant (k)
y = k/x ------------------- 2
Given that y = 7 and x = 9, we now find k , then use it to form an equation to connect y and x.
Back to 2
7 = k/9, therefore
K = 63. Now put thus back in equation 2
y = 63
---
x
Therefore, the equation connecting y and x is
y = 63/x.