last year, mary opened an investment account with $7200 at the end of the year, the amount in the account had increased by 23.5%. how much is this increase in dollars? how much was in her account at the end of last year

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?

Your company withheld $4,463 from your paycheck for taxes. you received a $713 tax refund. select the best answer round to the nearest 100 to estimate how much you paid in taxes.