Answer:
x = -3
x = -1
Step-by-step explanation:
A. coefficient is the answer
Answer: d
Step-by-step explanation:
use the formula 
Answer:
34? (I don't know what the upper right corner says)
Step-by-step explanation:
Answer:
13.5 cm
Step-by-step explanation:
if 5 cm is 2 km, then 10 cm is 4 km. To find one km you do half of 5 cm. which is 3.5 cm. So 10+3.5=13.5