A farmer has a 40 ft by 50 ft rectangular field that he wants to reduce to 10% of its original size. How wide of a strip should he cut around the edge of his field to do this? The strip around the outside is feet wide

Ateacher brought a pack of 17 batteries . each calculator uses 3 batteries . how many calculator can the teacher fill with batteries

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?

Mrs. chibas is making chocolate chip cookies for her daughter's class. she bought a tub of chocolate chip cookie dough that contained 57.6 ounces of dough. if each cookie needs 1.2 ounces of dough, how many cookies can she make