Elena is the champion diver on her swim team. she dives from a diving board that is 4848 feet high. her position above the pool is represented by the function h\left(t\right)=-16t^ {2 }+24t+40h(t)=−16t
2
+24t+40, where t represents time in seconds and h(t) represents height in feet. after how many seconds does elena enter the pool?

The two-way table shows the number of people whose hobbies are reading or solving puzzles and who either ride a motorcycle or don’t ride a motorcycle. among people whose hobby is reading, what is the relative frequency of not riding a motorcycle? express your answer as a decimal, and round it to the nearest hundredth if necessary. enter your answer in the box. reading solving puzzles ride a motorcycle 7 3 don't ride a motorcycle 5 9

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?