Answer:

Step-by-step explanation:
Let
j ------> the number
we know that
The square of a number is equal to multiply the number by itself
so
The square of j is

so
Two-fifths of the square of a number j is the same that multiply the fraction 2/5 by the square of j

Answer:
-12
-10
-5
-14
Step-by-step explanation:
First, you want to do inverse operations
M/-5 < 3
Just multiply -5 with 3
You have to flip the inequality sign because you multiplied by a negative
Answer: M > -15
Now what is greater than -15?
Answer =
-12
-10
-5
-14
A. 80 students
B. 12 students
Yes.
473 + 161/4 = 634/4 = 158.5
2x + 12 = 20
2x = 32
32/2x
X= 16