Can someone help me I really don’t get this

Step-by-step explanation:

1.

in the first hour they traveled fast

in the first hour they traveled 16 units

in the second hour they traveled 10 units

in the third hour 14 units

in the fourth hour 12 units.

2.

\[domain:{0≤x≤4}\]

3.

f(2)=10(2-1)+16=10+16=26

f(2) means distance in 2 hours.

4.

f(3)=14(3-2)+26=40 units.

5.

total distance traveled=12(4-3)+40=52

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x   - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°

step-by-step explanation: