A psychologist conducts a survey about the number of days per year a person was happy compared to the number of rainy days that occurred in their city. Let y be the number of days per year the person felt happy, and let x be the
number of rainy days that occurred in their city. The regression equation from the study is y = 12 +0.8643x. If there
were 150 rainy days in a city, how many days would a person be predicted to feel happy? Enter the answer as a
number rounded to the second decimal place, such as: 425.36.

Solve |2x - 5| = 4 if anyone could , that would be great

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)) =

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer