Marcus dropped a ball from a height of 400 cm. The sequence below shows the height of the ball, in cm, during its first four bounces. 240, 144, 86.4, 51.84, ... Which formula could be used to determine the height of the ball after n bounces? Ah(n) = 400(0.60)" 8 h(n) = 400(0.60)(n-1) C (n) = 240(0.60) Dh(n) = 240(0.60)(n-1)​

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

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Angela took a general public aptitude test and scored in the 88th percentile for aptitude in accounting. what percentage of the scores were at or below her score?