A 31 cm core sample from a large tree is to be divided into five pieces. Two of the pieces will be one length, and the other three will be 2 cm longer. What is the length of the LARGE pieces?

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

What is the solution of log2  (3x  -  7)  =  3? 4 5

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?