Answer:
14.
The card in 1997 is $9.98
The card in 1998 is $12.50
The card worth 1999 is $15.02
The relationship is not proportional as the ratio of year to value would be constant .
15.
A) d = 2/3m
B) d=40h
Step-by-step explanation:
Answer:
Step-by-step explanation:
9(2+1)=18+9
9(5-2)=45-18
4(1-8)=4-32
9(2=9)=18+81
Look at the diagram for the answer
Hope that helps!
Here 'a' corresponds to 0.
Now there are two possibilities for 'r' & 't'
Case 1.
They are on the same side to the right of 'a'
In that case 'r' corresponds to 5 & 't' corresponds to 7.
The midpoint of 'r' and 't' shall be 
Case 2.
Both are on the left of 'a'.
In that case 'r' corresponds to -5 & 't' corresponds to -7
The midpoint shall be 
Case 3.
'r' in on the right of 'a' and 't' is on the left of 'a'
So 'r' corresponds to 5 and 't' corresponds to -7
The midpoint shall be 
Case 4.
'r' is on the left of 'a' & 't' is on the right of 'a'.
'r' corresponds to -5 & 't' corresponds to 7
The midpoint shall be 
The possible coordinates of the midpoints of rt are 6, -6, 1, -1.