Please be Legible. Thank you!

13. Carlton is drinking a glass of water. When the glass contains 18 mL of water, he places it under the water tap and starts refilling. If 4 ml of water enters flows into the glass every 2.5 seconds, how much water will be in the glass 8 seconds after he started refilling? (a) 12.8 mL (b) 30.8 mL (c) 22.5 mL (d) 10 mL (e) 38 mL 14. The implied domain of the function y = f(a) = In(2x - 1) is the set of (a) all real numbers (b) all real numbers except * = 0 (c) all real numbers a > 0 (d) all real numbers > > 1/2 (e) all real numbers a