Emily has a total of 20 dimes and nickels. if the dimes were nickels and nickels were dimes she would have 20 cents less than she has now.
write a system of equations that represents the problem(2 pts)

how many of each coin does she have(2 pts)?

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position