When anna was born 16 years ago, her small town of lewisville had a population of 15,000. the population has increased 11% each year since then. what is the current population of this town?

Can someone me with this problem i don't understand i need

The first floor of marcus’ house is 1,440 square feet. he will cover 1,033 square feet with wood and the rest with tile. a box of tiles will cover 11 square feet. how many boxes of tile does marcus need to buy to cover the floor?

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.