Answer:
x = 50
Step-by-step explanation:
Let x be the original number.
This question can be expressed as:
0.4x = 20
0.4 of the original number is 20.
Now, we can directly solve for x:
4x = 200
x = 50
Answer:
i think its y = x² + 6x - 55
Answer: 3.50x + 4.00y ≤ 45
0 < y < 11.25
<u>Step-by-step explanation:</u>

Answer:
Output would be f(x)
f(x) = x/2
Step-by-step explanation:
The diameter is twice the radius (D=2R), then