write twenty eight million, seven hundred and five thousand, one hundred and eighty five as a number?​

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 =

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Do you mind if you guys me with this question i’m on number 8