21 billion is how much more than 9.8 billion write the answer in scientific notation

You are the owner of a small bakery. This week the bakery has orders for 24 dozen cupcakes. Each dozen sells for $16. Suppose your profit is 3/4 of the selling price for each dozen. How much profit will you earn on all of the cupcake orders?

14+5/7x-20=4 (1/7x-1)

If five times a number plus two is 17 what is the number? A. 3 B. 2 C. 7 D. 5

Necessary, comond (2+5) (x - 5)

Which expressions are equivalent when m=1 and m=4? A. 5m-3 and 2m+5+m B. 3m+4 and m+4+2m C. 2m+7 and 3m-3+m D. 5m+3 and 4m+2+2m

A block of wood is 7 inches long, 2 inches wide, and 3 inches high. What is the volume of this block of wood? 14 in3 42 in3 49 in3 147 in3

At Christmas a tv is on sale for 40% Off and is now priced at $876 find the original price the tv.

How many solutions exist for the given equation? 12x+1=3 (4x+1) - 2

Which is the opposite of - (-15) ? A) - 15 B) 0 C) 15 D) 1/15

How do you solve an equation like 2+6+7+20x