Please help me with these questions below! Rewards: Brainliest, Thanks, 50 points, and 5 Stars (If the answers are accurate)
You MUST show all your work!

1. Lenny bought a collector's item at a flea market for c dollars. He marked-up the item for 6.5% and sold it on Amazon. Write two expressions for the price of the item after the markup.

2. Malika sells picture frames. She buys the frames for $75 each and sells them at the markup rate of 20%. How much will a customer pay for a picture frame if an additional $15 shipping fee is charged per order? Write and solve an equation for this problem.

3. The price of a pair of Bose headphones increased by 15% in December.
Part A: The original cost for the Bose is h dollars, write an expression to represent
the cost of the Bose headphones after the increase.

Part B: If the original price of the Bose was $278.50, what is the price after the
increase? Use your expression from part A.

Good luck solving these! ;)

The formula for the lateral area of a right cone is la = rs, where r is the radius of the base and s is the slant height of the cone. which are equivalent equations?

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your

(20 points) a bank has been receiving complaints from real estate agents that their customers have been waiting too long for mortgage confirmations. the bank prides itself on its mortgage application process and decides to investigate the claims. the bank manager takes a random sample of 20 customers whose mortgage applications have been processed in the last 6 months and finds the following wait times (in days): 5, 7, 22, 4, 12, 9, 9, 14, 3, 6, 5, 15, 10, 17, 12, 10, 9, 4, 10, 13 assume that the random variable x measures the number of days a customer waits for mortgage processing at this bank, and assume that x is normally distributed. 2a. find the sample mean of this data (x ě…). 2b. find the sample variance of x. find the variance of x ě…. for (c), (d), and (e), use the appropriate t-distribution 2c. find the 90% confidence interval for the population mean (îľ). 2d. test the hypothesis that îľ is equal to 7 at the 95% confidence level. (should you do a one-tailed or two-tailed test here? ) 2e. what is the approximate p-value of this hypothesis?