The length of an object is measured as 84.8 centimeters. what is this measurement in scientific notation

#12 find the value of x. #13 find the value of the variable.

If g(x) = x+1/ x-2 and h (x) =4 - x , what is the value of ( g*h) (-3)?

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.