Answer:
A) x + y = 8
B) 3x + 2y = 21
We multiply A) by -2
A) -2x -2y = -16 Then we add this to
B) 3x + 2y = 21
x = 5
y = 3
Second answer is correct
Step-by-step explanation:
Answer:
19 and 20
Step-by-step explanation:
19^3 = 6859
20^3 = 8000
7201 is between the two numbers.
There are many answers, but one is 3.654
Answer:
9x^8+66
Step-by-step explanation: