Sonja's credit card has an APR of 21%, calculated on the previous monthly

balance, and a minimum payment of 2%, starting the month after the first

purchase. Her credit card record for the last 7 months.

A 87%

B 21%

C 23%

D 10%

What is the quadric regression equation that fits these data

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.