Nichole and Mindy are sisters. Their parents give them an allowance each week. Mindy spent all of hers last week and has none left. Nichole has $6. Write an equation that relates the value of Nichole's money to Mindy's assuming neither spends any money for the foreseeable future,
and they each get the same amount for an allowance.

What would my equation look like? Please help.

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

What is the value of f(x) = 2.2 for f(-2)?

Someone answer asap 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)) =