I need to solve the system of equations by graphing

Write the sentence as an equation. 6 fewer than the quantity 140 times j equals 104

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

Which point-slope form equation represents a line that passes through (3,-2) with a slope of -4/5