The numbers are being multiplied by 7
.5 • 7 = 3.5
3.5 • 7 = 24.5
24.5 • 7 = 171.5
etc
Answer:

Step-by-step explanation:
Theoretically, there is not square root of neither 13 nor a negative number so the special symbol is used to represent the square root of a number.
Lily is not correct her answer is wrong.
Answer:
Linda would have to babysit for 9 hours.
Step-by-step explanation:
26+54=80
54÷6=9