PLS HELP FOR MY FINAL EXAM :((( Larry needs to change a light bulb in the ceiling. Larry leans a 16 kot ladder against the wall with its base 5 feet away from the wall.
Which is closest to the distance of the height of the wall to the top of the ladder?

A 3 feet

B 11 feet

C 15 feet

D 17 feet

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

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”?