Which function has an inverse that is a function? a: b(x) = x2 3 b: d(x) = –9 c: m(x) = –7x d: p(x) = |x|

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%

just sum

10 + 10 = 20