Mary's coffee shop makes a blend that is a mixture of two types of coffee. type a coffee costs mary $5.45 per pound, and type b coffee costs $4.35 per pound. this month's blend used twice as many pounds of type b coffee as type a, for a total cost of $410.35. how many pounds of type a coffee were used?

Read the situations in the table below. then drag a graph and equation to represent each situation. indicate whether each of the relationships is proportional or non-proportional. edit : i got the right answer its attached

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Square a has a side length of (2x-7) and square b has a side length of (-4x+18). how much bigger is the perimeter of square b than square a?and show all work! you so