Answer:
x=0.9
Step-by-step explanation:
(ask me if u want it)
Answer: $D - $R
Step-by-step explanation:
Given the following :
Amount Jen had initially = $D
Amount had after purchasing video = $R
Amount she paid for the video =?
Amount she paid for video = ( Initial amount had before purchasing video - amount had after purchasing video)
Hence,
Amount paid for video = $D - $R
13y-2b=15y
2b=2y
2b=2y
2b=2y
Remember them is the best way to go.
draw the exact value triangles if you're unsure, but importantly, you just need to memorise these exact values.