Answer:
The expression
can be used to find Ayliah's age.
Step-by-step explanation:
Given statement is:
Ayliah is 7 years more than 1/2 of Deb's age.
Let,
x represent Deb's age.
The expression for Ayliah's age would be;
7 more means addition.
Ayliah's age = 
Hence,
The expression
can be used to find Ayliah's age.
Average speed in general = total distance / total time.
2 1/3 hours = (7/3) hours
Average speed of snowmobile = 32 miles / (7/3) hours = 13.7 mi/hr
7.7 is the greater decimal
(1/3)9^3 = (9/3)^3 = 3^3 = 27