How would the number 6,870,000,000,000,000 appear in scientific notation on a calculator screen using e?

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)