A) State whether the statement “(n, meN((n + m)! = n! + m!)” is true or false, and prove your answer.

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Find percent notation for 0.008 0.008=

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)