Can u please help me with this

Talia grouped the terms and factored out the gcf of the groups of the polynomial 15x2 – 3x – 20x + 4. her work is shown below. (15x2 – 3x) + (–20x + 4) 3x(5x – 1) + 4(–5x + 1) talia noticed that she does not have a common factor. what should she do?

How many zeroes do we write when we write all the integers 1 to 243 in base 3?

0.75,1.75,2.75,3.75 is arithmetic or geometric?