Answer:
18
Step-by-step explanation:
If we know she will have a 25% discount, we know she will only pay 75%. So you divide by 4 and get 6. So now, If we subtract 25% (6), our 75% will be 18.
I don't understand what you mean by 'mentally' but anyways, here is how to solve it.
(z−12)(z+12)
=(z+−12)(z+12)
=(z)(z)+(z)(12)+(−12)(z)+(−12)(12)
=z^2+12z−12z−144
=z^2−144
Answer:
w=38m
Step-by-step explanation: w ∝ m
w = km
w = number of words
m= minutes
k = constant of proportionality = 28
Hence w=38m
(3/16, -169/16). Creo que es correcto, tengas buenas noches
Let h be high temperature for today.
We are told that today high temperature will be at least 75 degrees. This means the high temperature will be greater than or equal to 75 degrees.
Let us represent this information by our inequality.
![h\geq 75^{o}](https://tex.z-dn.net/?f=h%5Cgeq%2075%5E%7Bo%7D)
Therefore, our desired inequality will be
.