Which number is irrational

Find the simple interest earned to the nearest cent for each principal, interest rate, and time 735 7% and two and a half years

Multiplying an even number of negative numbers gives an answer that is choose from:

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?