Aschool club is raising money for a trip, and needs to reach $10,000. their fundraising progress is modeled by the function

f(x) = 435 + 1200x, where x is measured in weeks.

what is the meaning of the constant 435?
a) it is the amount they started with.
b) it is the amount still to be raised.
c) it is the amount which is left over.
d) it is the amount they raise each week.

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

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)) =