150 times
out of the first 5 cards, there is a 3/5 chance of drawing a yellow.
if you replace the card and draw again, you still have a 3/5 chance of drawing a yellow card.
keep doing this process for 250 draws, each draw will always have 3/5 chance of drawing a yellow card.
so 3/5 +3/5 +3/5 +... (250 times) = 250 x 3/5 = 150
Step-by-step explanation:

Answer:
7×17/49
Step-by-step explanation:
90/7 × 4/7
90×4 / 7×7
360/49
7 17/49
Answer: 21.00
Step-by-step explanation: 48-27 = 21
Answer:
y= -a/bx +c/b
m= -a/b
b= c/b
Step-by-step explanation:
Hope this helps