Answer:
Step-by-step explanation:
0
r
= 1
Answer:
120
Step-by-step explanation:
7 copies I assume means multiplication. 7 x 1/4=7/4. When multiplying fractions, the numerator is multiplied.
168 hours are in a single week.
There are 21 people, everyone hugs each other, but the person hugging cant hug themself, so (21*21)-21
(21*21) -21 = 441
441-21=420