Answer:
112
Step-by-step explanation:
7 x 3=21
125-34=91
91 + 21=112
Answer:
x²/4 + y²/16 = 1
Step-by-step explanation:
Foci on the y axis: major axis parallel to y axis
x²/b² + y²/a² = 1
x²/4 + y²/16 = 1
Answer:

Step-by-step explanation:
<u>Step 1: Subtract 2x from both sides
</u>


<u>Step 2: Divide both sides by -3
</u>



Answer: 
I don't know so sorry I'll let you know when I do.