How to I write 1 2/3 as an improper fraction help ASAP

What is the value of x in the diagram below?

Write the fraction or mixed number and the decimal shown by the model

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42