Evaluate the expression c^2 + a if a = 1/2 and c = 9.

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

Abag contains 10 white golf balls and 6 striped golf balls. a golfer wants to add 112 golf balls to the bag. he wants the ratio of white to striped gold balls to remain the same. how many of each should he add?