The graph below shows the average Valentine's Day spending between 2003 and 2012 1. What is the average spending between 2005 and 2007?
2.What is the average spending between 2004 and 2010?
3. What is the average spending between 2009 and 2010?
112 PLEASE

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

answer:

a=9

step-by-step explanation: lmk if you need a explanation

fd

step-by-step explanation:

the answer for this is 0.25 km. : )