Problem solving
11. a bank teller has 7 rolls of coins. each roll
has 40 coins. how many coins does the
bank teller have?

Use the distributive law to multiply. 3(4x + 5y + 6)

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g