Marge purchased x bicycle helmets and y tire pumps. Each helmet cost $12.00 and each pump cost $8.00. She purchased a total of 18 items and spent $176.00. How
many helmets did Marge buy?

Is a deceasing linear model or an exponential decay model likely to be a better fit for the data about remembering? ?

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

Which shows the correct lengths of side c in both scales? scale 1: 45 m; scale 2: 60 m scale 1: 60 m; scale 2: 45 m scale 1: 36 m; scale 2: 27 m scale 1: 27 m; scale 2: 36 m mark this and return save and exit