The final free points for the day, -5×3÷(2-(-4)-3×(-3))?

Which is an equation for the nth terms of the sequence 12,15,18,21

Blank × 10-3 is 2,000 times greater than 1.9 × 10-6. it is also blank times greater than 9.5 × 10-4.

Atown has a population of 17000 and grows at 2.5% every year. to the nearest year, how long will it be until the population will reach 19600?