The mean of some observations is 10. It a constant 5 is added to each of the observations, then what is the new mean?​

Need this asap if anyone can i would be very grateful. if you could show workings that would really

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

Situation: find the age of the skull to the nearest year, enter the correct answer. a hiker in africa discovers a skull that contains 32% of its original amount of c- 14. done n = noekt 00000 no = inital amount of c-14 (at time t = 0) n = amount of c-14 at time t k = 0.0001 t = time, in years