Three letters weigh 310 3 10 ounces, 45 4 5 ounces, and 23 2 3 ounces. What is the total weight of the letters? Simplify your answer.

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x