I need help with reading

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?

In 1995 america online had about 3000000 users over the next decade users are expected to increase from a few million to the tens of millions suppose the number of users increased by 150% by the year 2000 how many users will there be in the year 2000

Solve the equation for x. 50(4x + 12) = 200