Answer: 
Step-by-step explanation:

Subtract 20x

add 15

Combine like terms

Divide by -25 (NOTE: When dividing or multiplying by negative numbers the inequality sign flips.)

The solution to the problem is as follows:
Given: 2.5 lb
Asked: 2.5 lb -----> kg
Answer:
2.5 lb * ( 1 kg/2.2 lb) = 1.1 kg
Therefore, the weight of the book in kg is 1.1 kg.
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Answer:
169.4 lbs
Step-by-step explanation:
77 * 2.2 = 169.4
Answer: Point form: ( 3 , -1 )
Equation form: X= 3 and Y= -1
Step-by-step explanation: