Plz help 0.3(1/4-1)+0.35 plz add ur answer as a fraction no decimal answer noo links plz

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 =

Піf x = y and y= z, which statement must be true? оа. -x = -2 b. x= z ос. —x = 2 od. 2= x

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?