Willy needs 5 quarts of motor oil. Each quart costs $1.39. Which number sentence can Willy use to find the cost of the oil he needs?

A $1.39 + 5
B $1.39 + $1.39
C $1.39 ÷ 5
D $1.39 × 5

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

answer: i'm not sure

step-by-step explanation: