81 is a composite number because it is the only number in the list that is not prime and is divisible by smaller primes.
The bolt travels 7,200,000,000 in one minute because 120,000,000 X 60 = 7,200,000,000. The 60 is how many seconds there are in a minute.
Answer:
9 tshirts
Step-by-step explanation:
Money he had for t shirts= $75
Cost of shipping= $3
Money left for t shirts= $75-$3=$72
Cost of 1 t shirt= $8
We can find the answer with two ways:
1st way: tshirts of $8=1
tshirts of $72=72/8
=$9
2nd way: Cost ($) 8 72
T shirts 1 x
8/1=72/x
by cross multiply
x=72/8
x=9
