FOR a friend Which of the following statements is true?

A.
The set of integers is a subset of the set of irrational numbers.

B.
The set of natural numbers is a subset of the set of integers.

C.
The set of rational numbers is a subset of the set of whole numbers.

D.
The set of irrational numbers is a subset of the set of natural numbers.

Y=4x^2+x-1 solve using quadratic formula

Ican figure out 20 shares multiply by $117.98 =2359.6920 shares multiply by $124.32=2486.40then take 40 shares multiply by $128.48=5139.20after that i'm lost any be greatly appreciated.

Bonnie and bobby are saving money for a vacation. each friend starts with an amount and also saves a specific amount each week. bonnie created a table to show the total she has saved at the end of each week.. weeks 0 1 2 3 4 5 6 7 8 amount saved 12 16 20 24 28 32 36 40 44 bobby came up with the following equation to show the total, y, he has saved at the end of each week, x. y = 12x + 4 compare the rate at which each friend saves money. select the correct answer from the drop-down menu to complete the statement. the rate at which bobby is adding to his savings each week is $ more than the rate at which bonnie is adding to her savings each week.