Evaluate each expression if r = –7, s = 4, and t = –8. 3st a. –84 c. –96 b. 96 d. 168

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

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

Given the equation y − 4 = three fourths(x + 8) in point-slope form, identify the equation of the same line in standard form. −three fourthsx + y = 10 3x − 4y = −40 y = three fourthsx + 12 y = three fourthsx + 10