Answer:
-9.9
Step-by-step explanation:
i just used a calculator ngl
Oops meant to put it here lol so the answer is 51
The inequality that can be used is 1.5c<_ 20 , or 1.5 times a number is less than or equal to 20.
If you're asking if you can subtract this, for example:
x³ - x²
No. They must have the same exponent to be compatible. For example:
4x² - x² = 3x²