Answer:
r = 13
Step-by-step explanation:
these angles are vertical and are congruent
8r + 6 = 9r - 7
6 = r - 7
13 = r
Answer:
y=-4
Step-by-step explanation:
If y=4x
and y=-1
y=-1×4
y=-4
Answer: 9 x ![10^{-3}](https://tex.z-dn.net/?f=10%5E%7B-3%7D)
Step-by-step explanation:
600 ---> 250
600 - 250 = 350
350 / 5 = 70
Average decrease in value per year: $70