Find the area of the triangle ABC / acellus

The table above shows approximate conversions from gallons to liters. what is the value of x?

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120