Answer:
5
Step-by-step explanation:
distribute the negative
5*3 + 5(-2)
15-10
5
Answer:
No lol
Step-by-step explanation:
No
Answer:
D
Step-by-step explanation:
A <u>linear inequality</u> is an inequality which involves a linear function. A linear inequality contains one of the symbols of inequality: <, >, ≤, ≥.
Consider all options:
A. The inequality
is not linear linear inequality, because x is in the left part denominator and in the right part numerator.
B. This option shows linear equation, not inequality.
C. This option shows quadratic equation, not linear inequality.
D. This option shows linear inequality 
The number is 21 because 2 is 1 doubled, and 2+1 is 3.