Answer:
$2.89
Step-by-step explanation:
$14.45/ 5= 2.89
<span>mean: ( 9 + 7 + 6.5 + 7.5 + 7 + 8 + 5 + 6 + 7.5 + 8 ) : 10 = 7.15Variance:(Sigma)² = ( 1.85² + 0.15² + 0.65² + 0.35² + 0.15² + 0.85² + 2.15² + 1.15² + 0.35² + 0.85² ) : 10 ≈ 1.15Answer: C ) 1.15</span>
3(j+4)-9=9
3j + 12 -9 =9
3j +3 =9
3j =6
j=2
C. 12 nickels and 9 dimes.
This is the only one that adds up to 1.50