A bag contains a total of 100 black and white marbles without looking a marble is chosen record and placed back in the back the student records eight black marbles and two white marbles predict the number of black marbles in the bag.

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2