4. [-/3 Points] DETAILS CLARKBIALG1 8.1.002. MY NOTES ASK YOUR TEACHER P The number of students who are enrolled in math classes at a local college can be represented by E = -15w + 600, where E represents the math class enrollment at the college w weeks after the start of the fall semester. (a) Find the total enrollment in math classes at the college at the beginning of the fall semester. (Hint: Since the semester is just starting, w = 0.) The total enrollment in math classes at the college was at the beginning of the fall semester. (b) During which week will the total enrollment be 480 students? The total enrollment will be 480 students weeks after the start of the fall semester. (c) What will the total enrollment be in math classes after 5 weeks? After 5 weeks, enrollment in math classes at the college will be Need Help? Watch It 5. [-/2 Points] DETAILS CLARKBIALG1 8.1.004. MY NOTES ASK YOUR TEACHER P The gasoline prices in Southern California can increase very quickly during the summer months. The equation p = 3.899 + 0.03w represents the gasoline prices p in dollars per gallon w weeks after the beginning of summer. (a) What does gasoline cost after 3 weeks of summer? (Include units with your numerical answer.) Three weeks after the start of summer, the gas price is per gallon. (b) During what week of summer will gasoline cost $4.139 per gallon? weeks after the start of summer, the gas price is $4.139 per gallon