D Question 4 7 pts Simplify m'm 'm and express with only positive exponents. (a) m5 (b) 71 45 (c) m5 (d) m+ (e) - D Question 5 7 pts .-16 Simplify and express with only positive exponents. (a) 1 712 (b) 1 7-20 (c) x12 (d) x20 (e) x20 D Question 6 7 pts (214)3 Simplify 312 and express with only positive exponents. (a) 272 (b) 8 (c) 872 8r (d) (e) 2r D Question 7 7 pts (x/3 */5) Simplify 3x2 (Assume all variables are positive). x/y12 (a) x-35 3 (b) 3 3 v3 (c) x7 y12 (d) 3x7 y12 (e) x3y12 3