19. Why are the substitution and elimination methods necessary when we already know how to solve systems of linear equations using the graphing method?

The company also discovers that it costs $15.50 to produce 3 camera cases, $23.50 to produce 7 camer cases, and $56 to produce 12 camera cases complete the function that represents the cost, c (x), to produce x camera cases

Two bags of miniature candy bars can be purchased for $5.00. How many bags could be bought for $25.00?

The function f (x) is an even polynomial function with a negative leading coefficient. The graph of f (x) has an axis of symmetry at x = - 2. Which statement describes the graph of - f (x - 3) ? A.

peter had 400 stamps. 5/8 of then are U. S. stamps and the reat ate Canadian stamps. he gave 1/5 of the U. S. stamps to his friend. how many stamps did he have left?

Carl takes a random sample of 100 students in his high school and finds out that 72% of the samples prefer pizza over burgers there are 1,500 students in the school

A jar contains 2 red, 1 white, and 3 blue marbles. Two marbles are drawn. If X equals the number of red marbles drawn, which of the following tables shows the correct data?

What is proportional and non proportional relationship

An app developer projects that he will earn $230.00 for every 100 apps downloaded. Which of the following equations can be used to represent the proportional relationship between the number of apps, x, and the total earning, y.

The base of a parallelogram with the area (A) of 72 square inches and height (H) of 6 inches. Use the formula for the area of a parallelogram A = bh

According to the MIT Airline Data Project, American Airlines controlled 15.5% of the domestic market during a recent year. A random sample of 125 domestic passengers that year was selected.