How to solve this one

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

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 .

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.