Solve 20 - 3n > 7n. Write the solution in set builder notation.
Need step by step instruction please.

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k

If there is 20 dogs in the shelter and 5 dogs get homes, and then 43 more dogs come. how many dogs are there in the shelter?