I need you help what is 16% of 75

1. during first 10 seconds 2. between 10 seconds and 35 seconds 3. during 35 seconds to 40 seconds

Identify the parent function that can be used to graph the function f(x)=3(x-9)2

Astocks price gained 3% in april and 5% in may and then lost 4% in june and 1% in july during which month did the stocks price change the most