1/2−3(1/2+1)^2
enter your answer, as a simplified fraction

Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. why is the rate of change for the function graphed to the left?

As a self-employed seamstress, you know that it takes 7 yards of material to make 3 jackets. you bought 15 yards of material to make 7 jackets. did you buy enough material? if not, how much were you over or under?

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.