question 1

Use the given nth term formula to compute the first five terms of the sequence.

a_n = 9n² 5n

a1	=
a2	=
a3	=
a4	=
a5	=

question 2

Let U =

{3, 4, 5, 6, 7, 8, 9, 10},

A =

{4, 6, 8},

B =

{3, 4, 7, 10},

and C =

{3, 5, 7}

. Find the following. (Enter your answers as a comma-separated list.)(A B)'

question 3

Cannonballs can be stacked to form a pyramid with a triangular base. Five of these pyramids are shown below.Use a difference table to predict the number of cannonballs in the sixth pyramid and in the seventh pyramid.

a6	=
a7	=