Answer:

Step-by-step explanation:

First, we expand the equation using the distributive rule:

Hence, 
Simplify: 
Add like terms:

Subtract 13 from both sides: 
Divide both sides by -8:

Answer:
The weight can vary from 22.5 to 25.5
Answer:100
Step-by-step explanation:
2 x 2.4=4.8
4.8+3.2=8.0
15.5 x 8.0=124.00
124.00-24=
100