Enter a negitive number that has an absolute value greater than 10

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.