sample Y is 98%
sample Z is 95.8%
;)
brain;iest
Answer:
2800
Step-by-step explanation:
Just round the 43 to 40 and the 68 to 70. So the problem then converts to 40x70 to get a rough estimate. 40x70=2800
1) n= 20.5
2) t= -17/3
1) -4n + 20 = -62
-4n = -82
n = 20.5
2) -3t = 17
t = -17/3