The recursive formula for a pyramidal sequence is P(n) = P(n-1) + m2. A
stack of cannonballs with 7 layers
has 140 balls. A stack with 8 layers
has 140 + 82 = 204 balls. Find the
number of cannonballs in a stack that
has 10 layers.

What is the size of the matrix resulting from

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years

The equation of line wx is y=2x-5. write an equation of a line perpendicular to line wx in slopeintercept form the contains points (-1,-2)