Duncan has three test results with a mean of 25 and a range of 20. His first result was 21. What did he get on the other two tests? Prini has 5 cards. The 5 cards have a mean of 11 and a range of 8. What are the numbers on the last two cards?

Candice uses the function f(t)=t+100−−−−−−√ to model the number of students in her after-school program. the variable t represents days and f(t) represents the number of students. how many days does it take for there to be 15 students in her program? a. 225 days b. 125 days c. 325 days d. 115 days