the fiest answer is x=6 for the second one the answer is x=4
Step-by-step explanation:
x+15/5x+1 =15/35 then cross multiply
1st one
The scale factor of dilation is 1/2 or

because the number of rectangle one is multiplied by 1/2 to make rectangle 2
good luck
Answer:32
Step-by-step explanation:
<h3>
Therefore either
or, 
</h3>
Step-by-step explanation:

here a = 3 ,b = 9 and c= -6



Therefore either
or, 