PATTY HAS $20 DOLLARS TO SPEND ON A GIFT FOR HER FRIEND. HER MOM GIVES HER $5 DOLARS MORE. IF EACH GIFT COST $5 HOW MANY GIFTS CAN PATTY BUY?

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

Solve 2x2 + 8 = 0 by graphing the related function. there are two solutions: . there are no real number solutions. there are two solutions: 2 and -2

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'