Unit rate means how much does it cost for 1 unit
140 for 18ft^2
divide by 18
140/18=7.77777777777777
so the unit rate is $7.78 per square foot
Answer:
14
Step-by-step explanation:
I think. sorry if i am wrong
Z>7 I think that’s the answer let me know if it’s right or not
Both is the answer to the problem
It follows from the definition of the binomial coefficient:
So we have
That is, gets absorbed into the numerator's factorial, and we introduct into the denominator. Now, , so we get
as required.