nina already has 24 hair bands, and additional hair bands are priced at 1 for a dollar. How much money does nina need to spend on new hair bands in order to own a total of 47 hair bands

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

What does the sign of the slope tell you about a line?