A toy manufacturer produces spherical balls of surface area 640 sq. in. How close to the ideal radius should the radius of the ball be, if the
allowed error tolerance in the surface area is +2 sq. in?

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)