How many integers between 2020 and 2400 have four distinct digits arranged in increasing order? (For example 2957 is one such integer)
(B) 10
(C) 15
(D) 21
e 28

Solve the system of equations. y= 2x y= x^2 - 15

When only separate discreet points are graphed it is called?

You have $600,000 saved for retirement. your account earns 5.5% interest. how much, to the nearest dollar, will you be able to pull out each month, if you want to be able to take withdrawals for 20 years?