Which summation represents the total number of
pennies on the chessboard?
64
21
1.29-1
n=1
32
231. 29-1
n=1
32
232. 2n-1
n=1
DONE V

How many terms does the polynomial x^2 y^2 have

Acompany charges $0.10 for each letter engraved. bobby plans to spend no more than $5.00 on the engraving on a jewelry box. write and solve an inequality to find the maximum number of letters he can have engraved.

Maddie's rectangular kitchen has an area of 10 square yards and a length of 3 3/4 yards.how many yards wide is maddie's kitchen?