Yvaries directly as x if y = 3 when x = 12 find y when x = 20

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

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→∞.

Write the slope intercept equation for line ab.