Answer:
B. 840
Step-by-step explanation:
21 is 70% of 30 and 70% of 1,200 is 840.
Answer:
U=3
Step-by-step explanation:
Since 9*3=27, and 27-7=20, U=3.
Answer:
The equation will be "
".
Step-by-step explanation:
Given:
Points (12, 9) = (x, y)
⇒ 
then,

or,
⇒ 
then,

⇒ 

By using the point slope form.
The equation of tangent will be:
⇒ 



I would answer this but I am not sure
Answer:
1.60 (rounded)
Step-by-step explanation:
I haven't done this in a while but you'd use the compound interest formula a=p(1+r)^n where a=8300 p=5000 r=0.075 and solve for n