Is the following number rational or irrational ? pi * sqrt(4)

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!

For the functions f(x) = -922 – 2x and g(x) = -32? + 6x – 9, find (f - g)(x) and (f - ).

Two terms in a geometric sequence are a5=15 and a6=1 what is the recursive rule that describes the sequence?