Answer: $15
Step-by-step explanation:
The normal price of the mirror is unknown we do not know that yet. So, let y represent the unknown number. The discount is 20 percent, we turn 20 into a decimal which would be 0.2. The amount of discount is $3. So, 0.2y equals to $3.
Then we divided.
y = 3 ÷ 0.2
And when you divide that is would be 15.
So, the regular price of the mirror is $15.
Answer:
SSS
Step-by-step explanation:
The formula for perimeter is
Side a x2 + side b x2
So just multiply 18 by two, and subtract it from 108
(15a^4 - 30a^5 )/5a^2
= 5a^2(3a^2 - 6a^3) / 5a^2
= 3a^2 - 6a^3
or
= - 6a^3 + 3a^2
Answer:
so it will be -55
Step-by-step explanation:
is not a rational number
-55 is a rational number
is not a rational number
π is not rational number
Let me know if i'm right :(
