If 4 lbs of potatoes cost 6.78...then 1 lbs of potatoes cost 6.78/4 = 1.695...rounds to 1.70 per lb
1 1/10 (A) would be the answer
Assuming you meant square root of 90 it would be
90 equals 3 times the square root of 10
√90 = 3√10
Answer:
$5829.57
Step-by-step explanation:
Annually compounding interest formula: 
5000(1+.0525)^3
5829.567266
which rounds to: 5829.57
The GCF Of All Those Numbers Would Be 7.
6(7)= 42
12(7)= 84
15(7)= 105