please help me answer these questions showing working. Thank you

5:29 . .1 mycourses.sgu.edu 2) Simplify the following: i) C - 5 4 marks. 36x2 y15 ii) -9x7 y-2 4 marks. iii) + 76 5 marks. 3) a) Perform the indicated operation. Reduce answer to its lowest terms. i) [ - 42 + (5 - 7)2 - (-5) - 1 1-3 13+ 1 -22 5 marks. ii) - 4 + ( - 2 ) (3 4 marks. b ) Solve iii) -9(x + 1) - 2x2 = -2 6 marks. 4) i) Simplify V300 - WIN V27 5 marks ii) + V3 VZ 5 marks. iii) V2( 5 + 4V2 ) 4 marks. 5) Perform the indicated operations. Simplify the answer when possible i) 2V72 + 3V50 - V128 5 marks. V7 ii) Rationalize the denominator of 1 - 2V7 5 marks. 6) i) In 2007, the population of the United States was approximately 303 million. Express this number in scientific notation. ii) Express the following number in decimal notation: 14.63 x 10-5 4 marks. 7) Evaluate: i) -7 + 5(x - 11)3 for x = -2 4 marks. Solve5:29 mycourses.sgu.edu i) 2V72 + 3V50 V128 5 marks. V7 ii) Rationalize the denominator of 1 5 marks. 2V7 6) i) In 2007, the population of the United States was approximately 303 million. Express this number in scientific notation. ii) Express the following number in decimal notation: 14.63 x 10-5 4 marks. 7) Evaluate: i) -7 + 5(x - 11)3 for x = -2 4 marks. Solve li) 3( -2x + 5) - 11x = 26 4 marks. 8) Given that a1 = -17 and d = -5, find: i) the first six terms ii) a22 iii) $30 12 marks. 9) Given that a, = -9 andr = -1/2, find: i) a3 ii) $5 7 marks. 10) The following straight line is given by the equation: 3x - 2y = 5 Find: i) The gradient of the line. 4 marks. ii) The x and y intercepts of the line. 3 marks. iii) Sketch the line. 3 marks