A fence post’s shadow is 8 feet tall and a tree’s shadow is 16 feet tall. If the fence post is 9 feet tall, how tall is the tree?

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

Sorry guys but as you have a small brain

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?