Mr. frame bought a tennis racquet stringing machine for $480. he uses it to sting racquets for local players. on average, he spends $8 per racquet on string. he then charges $20 to complete the string job. how many racquets will he need to striing before he breaks even

25 racquets

Step-by-step explanation:

Ok, so the equation would be y = 20x - 8, because he loses $8 for every racquet. So plug in 480 for y: 480 = 20x - 8 then solve for x. The answer is 24.4, and since there can not be a fraction of a racquet so you just round up to 25.

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: