Air is leaking out from a spherical balloon. Find the percentage decrease in its volume when its surface area has decreased by 36%.


Steps is needed, Thx

Petroleum :Air is leaking out from a spherical balloon. Find the percentage decrease in its volume when its surface area has decreased by 36%.


Steps is needed, Thx

Steps are needed ......




我開頭串錯咗respectively,
第一行漏咗and字
仲有第二行radius 係cm, 唔係cm2
percentage change 第2個step漏咗 - (減號)

唔知有冇複習化到 ...