45x+75y=1410 i hope this helps bc i’m pretty sure i’m learning the same thing but i hope this helps
Answer: 
Step-by-step explanation:
Given : An equation relating packets to bytes of information :
where<em> p</em> represents the number of packets and <em>b</em> represents the number of bytes of information.
1 byte = 8 bits
Let x= Number of bits such that 1 b = 8x
Put b = 8x in given equation , we get

Divide both sides by 8 , we get

Hence, the equation represent the relationship between the number of packets and the number of bits : 
1) Given that the apple tree is 4/5 pear tree we can write
Apple Tree size = 4/5 Peartree
Apple tree= 4m
2) So we can write the following expression for that:

So the Pear tree is 5 meters tall, and the apple tree is 4/5*5 = 4 m
32 mins is the answer and you can check the photo I added!!