20 points margaret earns $15.25 an hour working at a record store and is paid every week. she takes $50 from each paycheck and puts it in her savings account. she spends the remainder of her paycheck.

part a: identity the variables y, m, x, and b in the given situation. explain each variable.

part b: write the linear equation that represents the given situation z

part c: explain how the equation from part b can be used in relation to the given situation.

Select all the correct statements. the amount in dollars an electrician charges in terms of the number of hours worked is represented by the function y = 22x + 42. from the function, identify all the phrases that hold true for the situation. the electrician charges an initial fee of $22 the y-variable represents the number of hours the electrician charges an initial fee of $42 the electrician charges $22 for every hour worked the x-variable represents the electricians charges in dollars the electrician charges $42 for every hour worked

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.