Mariana made a quilt square with the design shown below. Which of the following best describes the shaded triangle with the given measures?

Can you simplify 4/7? 24 points will be awarded!

Ihave trouble finding the nth term of a linear sequence

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.