What should be multiplied with -25/36 to get -5/9​

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 =

What is the sum of these mixed numbers 2 1/8 + 4 3/8

Use the graph of the sine function y=2sinθ shown below