10 total balls.
A) first pick white = 3/10
Second pick white = 3/10
Both white = 3/10 x 3/10 = 9/100
B) 3/10 x 7/10 = 21/100
#4)
opposite of 51 is -51
reciprocal of 51 is 1/51
hope it helps
You didn’t provide enough information
Step 1: Simplify 0.02 x 0.789 to 0.01578
0.01578 ÷ 3.0999
Step 2: Simplify 0.01578 ÷ 3.0999 to 0.0051
0.0051
Done! :) Decimal Form Would Be 0.0051