the like terms are: 10y, and -9y because they are both of the same variable, y. 
 
        
             
        
        
        
Answer:

Step-by-step explanation:
we have

we know that

substitute

 
        
             
        
        
        
Answer:
The statistical question should be
"how many minutes do I exercise on each day of the week" and "how many minutes do I exercise each day of the week whilst there is background music"
Step-by-step explanation:
Here we have the non statistical question, how many minutes do I exercise each day
We note that a statistical question is one in which there are are different variety answers, where the distribution and the inclination of the the answers is sought
Therefore, statistically, we should ask, "how many minutes do I exercise on each day of the week" or "how many minutes do I exercise each day of the week whilst there is background music".
 
        
             
        
        
        
Answer:
No. It is not an Exponential Equation.
Step-by-step explanation:
Given
By the Definition of Exponential Equation which states.
"The equation is said to be an exponential equation when it has a variable occurred in the exponent and which have the same base."
For Example:
All given below are said to be exponential equations.

which can be rewritten as

Now in the given equation  it doesn't have same base neither any means the base can be made same,hence the given equation is not an exponential equation
 it doesn't have same base neither any means the base can be made same,hence the given equation is not an exponential equation
 
        
             
        
        
        
Answer:
See Explanation
Step-by-step explanation:
The question is incomplete, as the required lengths are not given.
I will use the following data set to answer the question.

First, is to determine the range of the dataset



Next, we will make use of 4 classes. So, we divide range by 10 to get the number of class. 10 represents the interval




<em>So, we use 4 classes</em>
Plot the frequency distribution table as follows:

<em>See attachment for histogram</em>