It's not a really a question but how to solve these types of questions
let f(x) = 9x − 2 and g(x) = −x + 3. find f(g(

let f(x) = 2x + 2. solve f−1(x) when x = 4.

let f(x) = x + 8 and g(x) = x2 − 6x − 7. find f(g(

let f(x) = x2 − 8x + 5. find f(−1).

John checked his watch and said that it is thursday, 7 am. what will the day and time be 2006 hours plzzz i will give you 100 points

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?