Answer:
x = 15
Step-by-step explanation:
There are 2 triangles. The small triangle CDE has sides that are 8 and 20.
The big triangle CAB has sides 6+8 and 20 + x. Add the 6 and 8 which is 14. Create a proportion and cross multiply, divide, then solve for x.

3. Twenty is two times the size of ten.
That's basically what the division problem says, is it not?
Answer:
14.25/25
Step-by-step explanation:
4y is 55% of 7.27 i believe?
Replace the x by x+3
so it would be
4log(x+3)