Answer:
Step-by-step explanation: This is the answer
a. 14 is a coefficient, and b is a variable.
This can be expanded to 14*b
b. 30 is a coefficient, and j and k are variables.
This can be expanded to 30*j*k
865 = 900
457 = 500
900 + 500 = 1,400
856 + 457 = 1,313
<em><u>3x + 5y = 7</u></em>
Step-by-step explanation:
