Which type of matrix can be formed using this system of equations?

a. a diagonal matrix

b. a square matrix

c. a matrix with 3 rows and 4 columns

d. a matrix with 4 rows and 3 columns

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning