Anyone who answers correctly is getting marked as brainliest !

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.

A50-foot ladder is leaning against a vertical wall. if the base of the ladder is 45 feet from the base of the wall, find the angle the bottling of the ladder makes with the ground.

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120