What is 3/4 - 1/3 in fraction form?

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!

Alocal business was looking to hire a landscaper to work on thro property. they narrowed their choices down to two companies. flouting landscaping company charges a flat rate of $120 per hour. green thumb landscapers charges $70 per hour plus a $1600 equipment fee