Answer :
Answer:
D 80 and 90
Step-by-step explanation:
using reverse problem solving
square root x = 9 then
9 squared =81
81 between 80 and 90
Answer:
D 80 and 90
Step-by-step explanation:
using reverse problem solving
square root x = 9 then
9 squared =81
81 between 80 and 90