Evaluate 6t - 20-32u when t = 6 and u = 1/5

Consider the graph of the exponential function y=3(2)×

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882