What is the value of 8-10-4 ?

Timed*** there are 8 rows and 8 columns, or 64 squares on a chessboard. suppose you place 1 penny on row 1 column a, 2 pennies on row 1 column b, 4 pennies on row 1 column c, and so on … how many pennies are on each square? a =   b =   c = d =   e =   f = g =   h =

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

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.