1. 5% of $30
2. 15% of $70
3. 0.4% of $100
show your steps and working

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

Evaluate the following expression 1/3^2

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15