Abody was found at midnight (12am) in a warehouse where the temperature was 55 degrees fahrenheit. the medical examiner found the temperature of the body to be 66 degrees fahrenheit. what was the approximate time of death? use newtons law of cooling with k=0.1947. t(t)=t (base a)+(t (base o)-t(base))e^(-kt)

a. 4 pm
b. 6 pm
c. 5 pm
d. 3 pm

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

With alll of except for the 2 that i did already

If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?