At the moment a certain medicine is injected, its concentration in the bloodstream is 120 milligrams per liter.
from that moment forward, the medicine's concentration drops by 30% each hour.
write a function that gives the medicine's concentration in milligrams per liter, cl(t), t hours after the
medicine was injected.

If 1/2 is half of 1, what is 1/2 of 2,3, and 4?

You are cycling around europe with friends. you book into a hostel and you ask the owner what the ratio of men to women is currently staying there. there are 24 men and 6 women. what is the ratio of men to women in its simplest form?

Phyllis and chen are saving money to go to a football game. each friend starts with some money and saves a specific amount each week. phyllis made a graph to show the total she has saved at the end of each week. chen wrote an equation to show the total, y, he has saved at the end of each week, x. y = 15x + 15 compare the amount that each friend has when both friends start saving. select the correct answer from the drop-down menu to complete the statement. phyllis starts with $ and chen starts with $