two years ago, emily's age was
which expression matches this situation?
a) 2a
b) a - 2
c) 2 + a
d) 2 - a

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table