Payday loans are typically $15 charge with an interest rate of 10% over a 2 wk period which variables in the interest formula are known

What is the equation of the graph below? y=sec(x)-4

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)