Answer:

Step-by-step explanation:
Multiply
.
Make use of the fact that side lengths in similar triangles are proportional.
.. 30/18 = (20 +x)/20
.. 20*(30/18) -20 = x . . . . multiply by 20, subtract 20
.. 33 1/3 -20 = x . . . . . . . . evaluate the product
.. 13 1/3 = x
Answer: a = 4k + 4q ÷ 3
Step-by-step explanation:
I think it's 1/4 because -4/1
i only see numbers not no square