Which ones do u need help on?
all?
Step-by-step explanation:
For triangle total degree=180°
2x+3x+4x=180
You get x=20°
Hence angles respective are..
40°,60°,80°
No, it is not a solution, as 15 is not less-than fifteen.<span />
Answer:
50% increase.
Step-by-step explanation:
(New Value - Initial Value)/(Initial Value) * 100 = percentage increase or decrease
(The formula)
<h2>
Hello!</h2>
The answer is:

<h2>
Why?</h2>
To solve the problem we need to add/subtract like terms. We need to remember that like terms are the terms that share the same variable and the same exponent.
For example, we have:

We have that we were able to add just the terms that were sharing the same variable and exponenr (x for this case).
So, we are given the expression:

Hence, the answer is:

Have a nice day!