Answer:
the first one
Step-by-step explanation:
y-y1=m(x-x1)
y-20=12(x-3)

simplify:

8+11=19 but if you add 21+19+12+5=57.
By counting cause you can find your answer duh
Answer:
31000 dollars were invested at 4% interest rate.
16000 dollars were invested at 5% interest rate.
Step-by-step explanation:
Convert the interest rate into decimal and then write down two equations to solve for the unknowns.


Best Regards!
Answer:
12
Step-by-step explanation:
To find constant: y=k/x
the constant there is only 12
the answer is 12
y=12
---
1
y=12