Aconjecture and a portion of the flowchart proof used to prove the conjecture are shown.

which equation best represents the information that should be in the box labeled 1?

a. 4a+4=20

b. 2a=20

c. 4a=10

d. 2a+4=20

Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais

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→∞.

If bill bought a home for $210,000 and he sold it a year later for $120,000 his percentage of loss is