Answer: $42 maybe?
Step-by-step explanation:
answer B. 108°
because 30% of 360 = 108°
Answer:
<h3>

</h3>


Step-by-step explanation:
1. 
Move constant to right hand side and change its sign
⇒
Subtract 6 from 21
⇒
Divide both sides of the equation by 3
⇒
Calculate
⇒
--------------------------------------------------------
2. 
Swap the sides of the equation
⇒
Move constant to right hand side and change it's sign
⇒
Add the numbers
⇒
Divide both sides of the equation by 7
⇒
Calculate
⇒
---------------------------------------------------------
3. 
Swap the sides of the equation
⇒
Move constant to right hand side and change it's sign
⇒
Subtract 7 from 28
⇒
Hope I helped!
Best regards!!
L=1.5w. And the perimeter of a rectangle is 2w+2l=25 substitute the 1st equation into the second.2w+2(1.5w)=252w+3w=255w=25W=5