You record the temperature of 12 days which number summarizes all the data with a single number

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

Which graph represents an exponential decay function?