Answer:
It natural because the sqrt of 16 is 4 and 4 is a natural number.
Step-by-step explanation:
23 plus seven is 30 and then you add the 15 which equals 45
There are two of them:
1). (n * a) means n + n + n + n + n + n + n + . . . 'a' times.
2). (n * a) also means a + a + a + a + a + a + a + a + . . . 'n' times.
Answer:
-10w - 20
Step-by-step explanation:
You distribute the 5 to each term inside the parentheses. 5 * -2w = -10w, and 5 * -4 = -20. Then you add them to get -10w - 20.