Put the following equation of a line into slope-intercept form, simplifying all fractions. 4y-4x= -28

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8