On a Number line the directed line segment from Q to S has endpoints Q at -8 and S at 12. Point R Partitions the direct line segment from Q to S in a 4:1 ratio. Which expression correctly uses the formula (m/ m + n)(x2 -x1) + x1 to find the location of point R? The options are:

* (1/1+4)(12-(-8))+(8)

*(4/4+1)(12-(-8))+(-8)

*(4/4+1)(-8-12)+12

*(4/1+4)(-8-12)+12

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)) =

How many solutions does the nonlinear system of equations graphed bellow have?

Which of the following circles have their centers on the x-axis? check all that apply.