Answer:
21
Step-by-step explanation:
Note that n! = n(n - 1)(n - 2) ..... × 3 × 2 × 1, thus
7! = 7 × 6 × 5 × 4 × 3 × 2 × 1
5! = 5 × 4 × 3 × 2 × 1
2! = 2 × 1
Hence
cancel 5 × 4 × 3 × 2 × 1 on numerator/ denominator, leaving
= 
= 21
If the ground beef is in pounds, it would be 5.25 lbs of ground beef.
We would get this answer by converting 3/4 into a decimal, .75. Then we multiply .75 by 7 (the number of people).
((This is if the amount of ground beef is in pounds, I'm not sure what it would be if it wasn't))
Answer:
x = 2
y = 149
Step-by-step explanation:
these two angles are equal to one another
(8x+15) = (7x+17)
solve for x
x = 2
two angles are supplementary
8x + 15 + y = 180
we know 8x+15 since x =2
8(2) + 15 + y = 180
16 + 15 + y = 180
31 + y = 180
solve for y
y = 180 - 31 = 149
please give brainist, you promised last time :)
