Ciara mom is planning her birthday party she bought balloons plates and cups sierra's mom bought twice as many plates as cups the number of balloons her mom bought was half the number of cups if her mom bought 84 items how many of each item did she buy

Answer this question only if you know the answer! 30 points and

If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25