(6 times 2x) + (6 times 5y)
Answer:
7
Step-by-step explanation:
No. of pizza Ronnie stacked = 0.25 × 40
= 10
No. of pizza Mack stacked = 9
No. of pizza Kim stacked =
× 40
= 14
No. of pizza Ada stacked = 40 - 10 - 9 - 14
= 7
Answer:

Step-by-step explanation:
Answer:
C) 15
Step-by-step explanation:
Here we have to use the combination to find the number of possible combinations.
Total number of classmates (n) = 6
We are selecting 2 individuals. So r = 2.
The combination formula nCr = 
Plug in n = 6 and r =2, in the above formula, we get
= 
= 
Simplifying the above factorial, we get
= 15
So the answer is C) 15
(-5,2) concave up
Hope this helps :)