Complete the square to write a general form equation of 2x2 + y2 - 12x + 8y +8 = 0 in standard form.

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

The floor plan of a room has a scale of 2.5 in.: 35 ft. in the drawing, the length of the room is 8 in. and the width of the room is 6 in. what is the perimeter of the actual room?

In δabc, if the length of side b is 3 centimeters and the measures of ∠b and ∠c are 45° and 60°, respectively, what is the length of side c to two decimal places?