What is the answer please really stuck ​

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

What is the difference between regular convex and concave polygons

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