Answer:
1. An algebraic expression of three non-zero terms only is called a trinomial.
2. like terms
3. x=49
4. positive
There are a total of 60 permutations makeable from those letters 3 at a time.
The common difference is 12. However, let’s take a look at how we got there!
First take the 2nd term (23) and find the difference from the 1st term (11). The difference is 12.
Repeat this for the remaining terms…
35 - 23 = 12
47 - 35 = 12
59 - 47 = 12
The common difference is 12.
Answer:

Step-by-step explanation:
1) Solve inside the parentheses.

2) Simplify (0.5 × - 0.6 ) to -0.3.

3) Simplify -0.3 × 0.4 to -0.12.

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Answer:
12 in
Step-by-step explanation:
she has square pillow, so 12*12=144 sq in