Help i dont want to fail final exam < 3 Which property is illustrated by the following?

If a=b+7 and b+7=9, then a=9
Question 16 options:

transitive property

addition property

symmetric property

reflexive property

Math it's appreciated. (picture provided)

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?

The volume of the sun is approximately 1 × 10^18 cu km, while the volume of jupiter is approximately 1 × 10^15 cu km. which of the following is true? a. the volume of jupiter is approximately one thousand times the volume of the sun. b. the volume of jupiter is approximately one hundred times the volume of the sun. c. the volume of the sun is approximately one thousand times the volume of jupiter. d. the volume of the sun is approximately one hundred times the volume of jupiter.