Number 4 and 6 are correct because you can only add variables with other variables so that is why 4 and 6 are correct
Answer:
sorry man i need pont
Step-by-step explanation:
Answer:
0.75d
Step-by-step explanation:
<u>Step 1: Convert words into an expression</u>
At one particular store, the sale price, s, is always 75% of the display price, d
d is the display price
%75 they are always off
d*%75
d * 0.75
<em>0.75d</em>
<em />
Answer: 0.75d
We have to simplify the expression here. The expression given,

Now to find
we will use power of a product property. We have to distribute the power here. We will get,

= 
Now we will use power of a power property. If given
we will have to multtiply the powers and we will get
. So we will get here,

Now the next part is 
By using power of a power property we will get,

Now we have to multiply them.

Now we have to use product of powers property. If we have same base them we will have to add the exponents there. The formula is
. So we will get here,


So we have got the required simplified answer here.
The simplified answer is
.