For a standard double six set domino and starting with a double six,
6|6 followed by 6|5 followed by 5|5 followed by 5|4 followed by 4|4 followed b 4|4 followed by 4|3 followed by 3|3 followed by 3|2 followed by 2|2 followed by 2|1 followed by 1|1 followed by 1|0 followed by 0|0
The last number is 0
5x - 9 = -30
"Nine less than" means - 9
"Five times a number" means 5*unknown number = 5x
Answer:
The answer is 7.0666
Step-by-step explanation: