1. The following are notations for composite functions EXCEPT, a. hpx b. fxgx c. s ° tx d. fgx 2.Find h3+d2 if hx=x-1 and dx=7x+3 b.2 b. 5 c. 14 d. 19 3. tx=-x2+7x+1 and rx=5x2-2x+8 , find t-r2. a. 18 b. -18 c. -13 d. 13 4. fx=4x+2 and gx=3x-1 , find f-g4. a.0 b. -9 c. 7 d. -8 5. If gx=x-4 and fx=x+5 Find fx . gx a. x2+x+20 c. x2-x-20 b. x2-x+20 d. x2+x-20 6. Given hn= n+6/n-4 and pk=frac n+6n2+4n-32 , Find h/p k. a. 1/n+8 b. n-8 c. 1/n-8 d. n+8 7. If fx=18x2 and tx=8x , find f/t x.