12.4x + 7.7 = 82.1 a. 0.7 b. 7 c. 0.6 d. 6 asap

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 =

Rewrite the hyperbolic equation 4y^2 -9x^2 +54x-8y-113=0

Empty box + box + empty box fill in the box is equal to 30 how