Fill in the blanks to find the product of 27 and 45. 27 × 45 = (20 +
) × (40 + 5)
= (20 ×
) + (20 × 5) + (7 × 40) + (7 × 5)
= 800 +
+ 280 + 35
So, the product of 27 and 45 is
.

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?