30 K +70 equals 20 K +80 what is the value of K

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?

Point b lies between points a and c on . let x represent the length of segment ab in inches. use the segment to complete the statements. the value of x is . the length of in inches is . the length of in inches is .