two times a number added to another number is 25. Three times the first number minus the other number is 2. what are the two numbers?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents