Step-by-step explanation:
a. Area = 121 ft²
s² = 121
s = √121
Therefore s = 11 ft
b. Area = 81 yd²
s² = 81
s = √81
Therefore s = 9 yd
c. Area = 324 cm²
s² = 324
s = √324
Therefore s = 18 cm
d. Area = 361 mi²
s² = 361
s = √361
Therefore s = 19 MI
Answer:
2x+3y=-6
Step-by-step explanation:
20/45 = x/18
(cross multiply and sole)
360=45x
x=8
8 pages