The electrical current, in amperes, in a circuit varies directly as the voltage. when 24 volts are applied, the current is 8 amperes. what is the current when 57 volts are applied?

What is the quadric regression equation that fits these data

What is the y-intercept of the line given by the equation

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 .