Find the area of the semicircle.
either enter an exact answer in terms of or use 3.14 for and enter your answer as a decimal.

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

Volume of a cylinder with a radius of 13 in and height of 30 in

Which linear equations have an infinite number of solutions? check all that apply.  (x  –  3/7)  =  2/7(3/2x  –  9/14)8(x  +  2)  =  5x  –  1412.3x  –  18  =  3(–6  +  4.1x)(6x  +  10)  =  7(x  –  2)4.2x  –  3.5  =  2.1 (5x  +  8)