Define the unknowns, write a linear system and solve it to answer the question A jar contains nickels and dimes. If the jar is worth $7.70 and it has a total of 119 coins in it, how many dimes are in the jar?

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

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 factored form of this trinomial 9x^2+18x-7