Q5. . 1 point Q7. Consider e # 0, in both pairs 1 point below. * Q9. Solve the following equation for 2 points Q13. Wolfgang rides his bicycle to 1 point x. Show your work!* school. He has observed that he Simplify 156 + 5063 Determine the lowe we for the pair joe and reduces the time for his 7.5 km ride by 20b' -45b 4.5 min when he increases his average 3 x +4 3.x - 3 speed by 5 kmin. If x represents the SLOWER speed, which expression A. 3 + 1062 1 , b = 0, 17 OA represents how long the FASTER trip 462 -9 Your answer takes, in HOURS? * O B B. 1 + 56' 263 -3' -, b # 0, ty O c OD Q10. Identify THE ROOTS (THE 2 points C. 3+562 26-9, 6=0,+3 SOLUTIONS) of the following 7.5 D. 3 +10b equation. Show your work! (Attach a 2b-9 10, b # 0, 12 Q8. 1 point picture of your work to the exam, if necessary) * OA Simplify + + 1 7n2 5n O B 2 + x+ 1- 2x + 2 Option 1 O c A. 5+ 7n' +71 1 + 0 Your answer 35n2 B. 5+ 7n +71 1# 0 Q14. When they work together, Carla 3 points 35n Q6. * and Wolfy can deliver flyers to all the 1 point 7.5 C. 5 + 14n 1 , n # 0 homes in their neighbourhood in 24 r + 5 Determine all the non-permissible values of the variable. 35n12 min. When Carla works alone, she D. 5 + 14n needs 14 min longer to deliver the 1 , n#0 flyers than Wolfy when he works A. -2,0,3 35n B. * * 0. 2.3 C. *#-2. 3 alone. How long does it take Wolfy alone to deliver the flyers? Show your O Option 2 D. & # 0.3 OA OB work . * OA O c O B Your answer O c 450 OD Use the situation below to answer the next 2 questions (Q11 and Q12) Q15. Adele bought a case of concert 3 points Salt water is flowing into a large tank that of T-shirts for $600. She kept five T- shirt for the band and sold the rest for $700, making a profit of $5 on Option 3 each T-shirt. How many T-shirts did Q11. WHEN does the salt 1 point she sell? Show your work! * concentration reach 2 g/L ? * Your answer 0.74 min 450 r+5 5.56 min 6.25 min never Option 4 Q12. What were the RESTRICTIONS 1 point when solving the above problem? * Your