Find the value of c that makes the expression a perfect square trinomial. x² – 18x+c

A)
36
B)
54
0)
72
D)
81

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

6 spoons of sugar for every 21 cups of flour

step-by-step explanation: