Answer:
yes
Step-by-step explanation
because it is an algebraic expression. 3a + a are called like terms because they both contain the same letter. To simplify an expression we collect together like terms. You can only add or subtract when the letters are the same.
50 degrees
Step-by-step explanation:
65 times 2=130
180-130=50
Answer: -13
hope it helps
$120
150-20%
For some reason it says that my response has to be 20 characters long that's why I'm typing this.
