The answer you are looking for is (7, 2).
Answer:

Step-by-step explanation:
Given
--- total



Required

This is calculated as:

So, we have:




Answer:
50
Step-by-step explanation:
she starts with 9 plus the 10. so she has 19. Danny takes 4 so she has 15. then she trades so she gets 3 per marble she trades so it's like 15 times 3 which is 45. plus the 7 her parents gave her which is 52 and she gives 2 to her sister. so it's 50
The trials are independent; there are only 2 outcomes per trial; and the probability of success is the same for each trial.
Answer:
y=76+2.5x where y is the amount he earns in a day and x is the number of tshirts sold
y=76+2.5(32)
y=76+80
y=156
he earns 156 dollars if he sold 32 tshirts
Step-by-step explanation: