17. The present age of a father and his son is 50yrs and 20yrs respectively. How many years ago the product of their ages was 451. ​

Acontractor needs 54 square feet of brick to construct a rectangular walkway. the length of the walkway is 15 feet more than the width. write an equation that could be used to determine the dimensions of the walkway. solve this equation to find the length and width, in feet, of the walkway.

Determine whether the angles in each given pair are coterminal. 744°, -336°

What signals you that factoring by grouping is the best method to use when factoring a problem?