Answer:
carrie can invite 5 friends with some money left over
Step-by-step explanation:
12f+10<75
12f<75-10 *carry the 10 over
12f<65 *simplify
f<65/12 *carry the 12 over
f<5.42 *simplify
The increase from 5 to 8 was by 60%.
You check if it is even and that the sum of the digits is divisible by 3. That's the divisibility rule of 6.
