Answer:
r equals start fraction cap a minus p over p t end fraction
Step-by-step explanation:
Subtract the term non containing r, then divide by the coefficient of r.

Answer:
48
Step-by-step explanation:
Answer:
27 i think
Step-by-step explanation:
I divided them to make sure its right im not 100 percent sure tho
Answer:
x = 27
Step-by-step explanation:
mean is calculated as
mean = 
sum = 2 + 7 + x = 9 + x and count = 3 , then
= 12 ( multiply both sides by 3 to clear the fraction )
9 + x = 36 ( subtract 9 from both sides )
x = 27