What is 3b divided by z if b is 2 and z is 1/2

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet