Answer:
c 1,320
Step-by-step explanation:
12 x 11 x 10 = 1,320
only one person can finish in each place
Answer:
6.3/2.5=2.52
Step-by-step explanation:
Sum of a finite geometric series=a(r^(n) -1)/(r -1)
or
sum of a finite geometric series=a(1 - r^(n))/(1 - r)
the Smiths would spend a total of $2928.2 on clothing in 4 years
