Answer:
See below in bold.
Step-by-step explanation:
A i The ratio of the areas = 3^2 : 5^2 = 9 : 25.
ii The ratio of the volumes = 3^3 : 5^3 = 27 : 125.
B i The ratio of the side lengths = √49 : √81 = 7 : 9.
ii The ratio of the volumes = 7^3 : 9^3 = 343 : 729.
