PLEASE HELP IM ALMOST OUT OF TIME AND TODAYS MY LAST DAY.
NO LINKSS

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

Given: △acm, m∠c=90°, cp ⊥ am , ac: cm=3: 4, mp-ap=1. find am.