Ryan has four notebooks and a pencil case in his bag. the total mass is eleven pounds. the pencil case weighs 1/2 pound and each of the notebook has the same mass.

Use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2 + 9 = −26 −3 − 7 = 13

Find the value of the combination. 5 c 5

Pleas its really urgent and i would really appreciate it! what is the value of x? enter your answer in the box. x =