What is the solution set of the equation x2 + 3x - 4 = 67
a. (-5, 2)
b. (-2, -1)
c. (2,7)
d. (5, 10)

answer: a

step-by-step explanation:

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%

that is the sum

step-by-step explanation:

there are no other answers without knowing the variables values