Express 0.000000298 as a single digit times a power of. ten rounded to the nearest ten millionth

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

We just started the introduction into circles and i have no idea how to do this.