The phone I bought for $999 is losing 8% value each month. How much will it be worth in 2years

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Math question.. plz me .. best answer all

Aline has a slope of . which ordered pairs could be points on a parallel line? check all that apply. (-8, 8) and (2, 2) (-5, -1) and (0, 2) (-3, 6) and (6, -9) (-2, 1) and (3,-2) (0, 2) and (5,5)