Answer:
A or B or C or D, one of those
Answer:
Step-by-step explanation:
rational
Answer:
9
Step-by-step explanation:
22-4 = 18 ("plus four")
18/2 = 9 ("two times a number")
Answer:
c. the leading coefficient is 8
Step-by-step explanation:
A)
Let X be the food expenditure of a family.
Let the population mean of an expenditure of a family be.
Let the population standard deviation of an expenditure of a family be.
The proportion families spend more than $30 but less than $490 per month on food is,