Of the 19 houses on Jay’s street, 7 have a black mailbox, 6 have a stone driveway, and 4 have both a black mailbox and a stone driveway. What is the probability that a randomly selected house on Jay’s street has a black mailbox or a stone driveway?

4 packs of water and 7 packs of candy bars

step-by-step explanation:

35x4=140

140/20=7

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%

answer:   c ?

step-by-step explanation:

the photograph is photographer and- in the process- ourselves.

step-by-step explanation: