Find the vertex and y-intercept of the quadratic function.
y = - x2 + 4x + 7

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan for ?

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?