**Answer:**

the value of BD is 18.

**Step-by-step explanation:**

Our given are two triangles and these triangles are congruent. It means that they have the same measures of angles and sides.

ΔABD ≅ AFEC, based on this we find there equivalent sides and angles

AD ≅ FC (measures 19.7)

∠A ≅ ∠F (measures 63°)

FE ≅ AB (measures 12)

∠B ≅ ∠E (measures 72°)

∠D ≅ ∠C (measures 45°)

lastly BD ≅ CE (measures 18).

**Answer: A. 14.02 to 15.98**

**Step-by-step explanation:**

Let denotes the mean waiting time for population.

**Given : **Sample size : n= 64

Sample mean : (minutes)

Population standard deviation =

Confidence level : 95%

By z-table , the critical values for 95% confidence = z*=1.96

**Confidence interval for population mean :**

The 95% confidence interval for the population mean of waiting times will be :

Hence, the 5% confidence interval for the population mean of waiting times is __14.02__ to __15.98.__

Thus , the correct answer is **Option A.**

Answer= Quadrant 1 (+,+) and Quadrant 3 (-,-)

Naomi would stretch her neck because she stretches her neck every HALF HOUR so she would end up stretching her neck twice in one hour.

**Answer:**

4

**Step-by-step explanation:**

2+2=4