Answer:
Your answer is 2.5
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This week you paid $1.25 each because they were on sale for four for $5.
Answer:
The probability of selecting both yellow is 5/22.
Step-by-step explanation:
Given the number of yellow marbles = 6
Black marbles = 4
Purple marble = 2
Now find the total number of marbles in the jar.
Thus total marbles = Yellow marbles + Black marbles + Purples marble
Now insert the values in the above formula.
Total marbles = 6 + 4 + 2
Total marbles = 12
The probability of 2 yellow marble:

Thus, the probability of selecting both yellow is 5/22.
I hope this helps you
if he can earn $9 per hour
$405 ? hours
?=405/9
?=45 hours he worked