Mark's parents deposited $1,200 into an account when he was born. How much interest will the account have earned after 18 years at a 1.5 simple interest rate

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?

Line u passes through points (-52, -18) and (-29, 53). line v passes through points (90, 33) and (19, 56). are line u and line v parallel or perpendicular?

Joline is solving the equation 0=x^2-5x-4 using the quadratic formula which value is the negative real number solution to her quadratic equation round to the nearest tenth if necessary