Answer:
Step-by-step explanation:
Count the number of elements in A
n(A) = 4
Answer:
4
Step-by-step explanation:
-3 - (-4) - (-2) + 1
-3 + 4+ 2 +1
1 +2+1
2 + 2
4
Answer:
12 3/8 feet
Step-by-step explanation:
Because 4 1/2 times 2 3/4 equals 99/8, then 99 divided by 8 equals 12 3/8.
The answer is because 15-4 is 11