Let h represent mark's height in inches. suzanne
is 7 inches shorter than mark. write an algebraic
expression that represents suzanne's height
in inches.

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?

Find the axis of symmerty for x y=x squared -4x-8

Acontainer holds 0.7 liters of oil and vinegar. 3/4 of the mixture is vinegar. how many liters of oil are in the container? express your answer as both a fraction and a decimal.