we are given the following expression:
[tex]9(-4k+8b)[/tex]we are asked to plug in the following constants, b = -9 and k = 4, to do that, we will replace the values given for b and k in the expression, like this:
[tex]9(-4(4)+8(-9))[/tex]Now we will solve the multiplications inside the parenthesis, like this:
[tex]9(-16-72)[/tex]Now we will solve the operation inside the parenthesis, we get:
[tex]9(-88)[/tex]Now we solve the multiplication:
[tex]9(-88)=-792[/tex]therefore, the final answer after pluging in b and k is -792.
