(30 points and will give brainiest if correct) You have a pile of quarters and nickels that add up to $10.35. There are 4 times as many nickels as quarters. How many of each type of coin do you have?

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

Which speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined

Find the value of x. give reasons to justify your solutions! l, m ∈ kn