Adoctor’s office schedules 15-minute appointments and half-hour appointments for weekdays. the doctor limits these appointments to, at most, 30 hours per week. write an inequality to represent the number of 15-minute appointments x and the number of half-hour appointments y the doctor may have in a week.
a.
15x + 30y < 30

b.
15x + 30y < 1800

c.
15x + 30y > 1800

d.
15x + 1/2 y < 30

Alake near the arctic circle is covered by a sheet of ice during the cold winter months. when spring arrives, the ice starts to melt. s(t) models the ice sheet's thickness (in meters) as a function of time tt (in weeks). s(t)=-0.25t+4

When are two distinct non vertical lines parallel

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?