Which equation represents a linear function?
y-2=-5(x-2)
x + 7 = -4(x + 8)
y - 3 = y(x + 4)
y+9=13-15

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?