$990
550 x .80 = 440
$550 + $440 = $990
Answer:
75
Step-by-step explanation:
(71+89+100+x)/3=83.75
(83.75*4)
335-100-89-71=75
2n+5...a couple is two people so you need to multiply the number of couples, n, by 2 to get the total number of dancers. Then add the total number of organizers.
If we want to select a ball of each colour we have to extract 175+150+75+70+1=471 balls
P=471/500 is the answer
Answer:
Step-by-step explanation:
