Answer:
k=-9
Step-by-step explanation:
k-8+8=-17+8
k=-9
The train is traveling at 165 mph
495/3=165
825/5=165
1155/7=165
1485/9=165
You need to include the radius.
For the first digit, you have two possible choices: 1 or 2. For *each* of those choices, you can choose 1 or 2 for the second digit in the number, and for each of *those*, you can choose 1 or 2 for the third digit of the number.
That’s 2 * 2 * 2 or 8 possible 3-digit numbers you can make with the digits 1 and 2.
