Answer:
$253
Step-by-step explanation:
Margin of error is the critical value times the standard error.
MoE = z × σ/√n
At 99% confidence, z = 2.576.
MoE = 2.576 × 844/√74
MoE = 253
Answer:
U = -1
Step-by-step explanation:
-6 - 1 = -7
Answer:
Only one solution
Step-by-step explanation:

25/100 simplify and get 1/4
.25 as a decimal. 25 hundredths
1 = 60
2 = 120
3 = 60
4 = 120
5 = 30
6 = 30