Answer:
4(2a+5)
Step-by-step explanation:
4 times 2a= 8a
4 times 5= 20
1 foot on the north and south sides and 22,499 feet on the other two sides<span />
Answer:
79
Step-by-step explanation:
To find the value of 
, when x = 3, simply plug in the value of x in the expression and solve as follows:
The value of , when x = 3, is 79
Answer:
27.28
Step-by-step explanation:
88
* 31
____
88
+ 2640
______
2728
Since you removed the decimal places from the original numbers, for a total of 2 spaces. You need to add that back.
you will have
27.28
test grades: 75, 82, 88, 70
Average = Total sum of all numbers/number of item in the set
Total sum of all numbers = 75 + 82+ 88 + 70 = 315
number of item in the set = 4
Average = 315/4 = 78.75
