The recursive formula for a pyramidal sequence is P(n) = P(n – 1) + n2. 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.

It says factor each expression 49x-28?

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.

Which of the following parabolas opens down?