Answer:
D. All of the above.
Step-by-step explanation: Please brainliest if correct!
Answer:
B
Step-by-step explanation:
THere are 52/4= 13 hearts we can draw
The number of ways to draw 3 hearts from 13 is
13C3= 286
The number of ways to draw 3 cards from 52 is
52C3= 22100
divide these
286/22100= 11/850
This is answer B
Answer:
12 weeks
Step-by-step explanation:
every 5 weeks marcus lost 7.5 pounds (232 - 224.5)
or 1.5 per week
so 232 - 214 (start to goal) is a total of 18 pounds
18/1.5 = 12 weeks
First, Delete these brackets on the right side:

Left side and right side are equal, so each parameters have to be equal. Next to "x^2" you've got parameters "6" and "3n". So:
3n=6 /:3
n=3Free terms are "6" and "3m", so:
3m=6 /:3
m=2Next to "x" you've got "b" and "9+nm" . We know, that m=2 and n=3 so:
b= 9+nm
b=9+2*3=9+6
So
b=15