Eric practiced piano and guitar for a total of 8hours this week. he practiced the piano for 1/4 of that time. how many hours did eric practice the paino this week.

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label