4). (2 points each) Solve these "square" equations: a). x2 = 25 X = ______ b). x2 + 4 = 40 X = ______ c). x2 - 4= 60 X = ______ d). a2 + 2 = 83 X = ______ e). 40 - x2 = 4 X = ______ f). 10 - x2 = 1 X = ______ g). b2 - 9 = 40 X = ______ h). d2 + 20 = 29 X = ______ 5). (2 points each) Use your calculator for these: a). 4.42 = ________ b). 8.22 = ________ c). .012 = ________ d). 1.042 = ________ e). 44.42 = ________ f). 66.22 = ________ 6). (2 points each) Find these cubes: a). 33 = _________ b). 43 = _________ c). 53 = _________ d). 13 = _________ e). 63 = _________ f). 2.53 = _________