80+32=112 so all you do is just add or use a brain .
Answer:
Step-by-step explanation:
QR = 27 ÷ 2 = 13.5
For #2:
<span> 3x^2 + 4 – 2x^2 + 6</span>
<span><span>You need to combine your like terms:
</span>
3x^2 – 2x^2= x^2</span>
4 + 6 = 10
This will now give you:
<span>X^2 +10</span>
A standard piano has 88 keys on it
Answer:

Step-by-step explanation:
1) Remove parentheses.

2) Regroup terms.
