8. If a+b+c +l is a geometric progression, prove that its sum
is b(L)- a^2/ b-a

The product of two negative rational numbers is always zero sometimes zero never zero

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?