Circle I is dilated with the origin as the center of dilation to create Circle II. What is the scale factor used in the dilation? If the scale factor is a fraction. A. 2
B. 4
C. 1/2
D. 3/4​

Im literally having a mental breakdown

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years

Use the ratio test to determine whether ∑n=14∞n+2n! converges or diverges. (a) find the ratio of successive terms. write your answer as a fully simplified fraction. for n≥14, limn→∞∣∣∣an+1an∣∣∣=limn→∞.