Answer:
Step-by-step explanation:
She added 3x and -2x, getting 5x, instead of x. She needs to pay more attention to the positive/negative signs.
Answer: 3.14 *16.8*16.8*16.9=14977.3478
14977.3478= 14,977.35
Answer:
-4n - 5
Step-by-step explanation:
4 - 9
= -5
-5n + n
Combine like terms
= -4n
-4n - 5
Answer:
8.25 feet
Step-by-step explanation:
3 2/3 times 2 1/4 equals 8.25
