-5x 2/7 =
−10x/7
srry if it is wrong man but that is what i got
Start with

Multiply the whole equation by 2. Since 2 is positive, we don't need to switch the inequality sign:

Subtract 3 from both sides:

Answer: 87 m
Step-by-step explanation:
This problem can be solved by using a simple ratio and proportion.
The way you figure this out is::
Model = 12 m/ 1 cm = x/7.25 cm
Solve for x and you should receive this answer:
x = 87 m
hope I helped, best wishes to your future studies...
-a
Y +6 =(1/2)(x+4)
y +6 = 1/2 x +2
y=1/2 x - 4
or 1/2 x -y = 4
Find the cube root of 90 if there isn't, try to compare irrational numbers