I’m confused he and she are competing in a 42 mile race. he has already finished 18 miles of the race and is traveling at a constant speed of 12 miles per hour. she starts at 16 miles per hour. equation: 18+12x= 0+ 16x (x= 4.5 hrs) at what constant speed could wanda travel to catch up with hector at the finish line

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

Do some research and find a city that has experienced population growth. determine its population on january 1st of a certain year. write an exponential function to represent the city’s population, y, based on the number of years that pass, x after a period of exponential growth. describe the variables and numbers that you used in your equation.

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.