-2(x - 10)2 + 21 = -143 That is the quadratic equation.
Is 19.1 and 0.9 correct?
I want to double check!

Nell has a sales clerk job that pays $12 per hour for regular gas work hours. she gets double time for any hours over 40 that she works in a week. how many hours did nell work if her weekly pay was $744

If you answer 2+2 you will get over 80 points

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!