So increased weight = 92-80 = 12
so ℅ = 12×100/80 = 15
so his weight is increased by 15℅ !!
Answer:are there choises?
Step-by-step explanation:
The main property is as follow
(A^p)^q=A^pxq
so only Sam's work is correct because
(8^4)^5 x(7^3)^9=(8^4x5)x(7^3x9)=8^20x 7^27
Answer:
a. 
b. 
Step-by-step explanation:
Given
The data in the table
Solving (a): The coordinate that represents the unit rate
The unit rate is when its 1 pound
This is so because the unit rate is dollars per pounds.
<em>Hence, the coordinate is </em>
<em></em>
Solving (b): Equation of the graph
First, we calculate the slope (m)

Where:






The equation is then calculated as thus:

This gives:


Make y the subject

<em>Hence, the equation of the graph is: </em>
<em></em>