Asubmarine starts out at sea level and descends vertically at a rate of 20 ½ feet per second. write an equation and solve to find out how long it takes for the submarine to reach -120.4 feet? round your answer to the nearest whole number.

blue marble is 15 times out of 50 = 15/50 reduces to 3/10

landing on tails is 24 out of 50 = 24/50 reduces to 12/25

to find the probability of both multiply together:

3/10 x 12/25 = 3 x 12 / 10 x 25 = 36/250

if you multiplied the numerator and denominator by 10 you get 360/2500.

the answer is 360/2500

i believe

step-by-step explanation:

from my conclusion c