Answer:
x=16.1
Step-by-step explanation:

Divide both sides by -0.5

Add 7.1 to both sides

Hope this helps!
Answer:
189
Step-by-step explanation:
you get this by taking 315 and mutiply it by 0.6 and get 189
Answer:
try " 15"
Step-by-step explanation:
Answer:
The sides get smaller
Step-by-step explanation:
Because anything times 1 gets smaller and it's no different for scale factor