Х + 2х +___ = 5x what goes in the blank

During a wright loss challenge your friend goes from 125 pounds to 100 pounds.what was the percent weight loss

Subtract and simplify. (-y^2 – 4y - 8) – (-4y^2 – 6y + 3) show how you got the answer if your answer is right i will mark you

Student representatives surveyed their classmates on their preference of a school mascot for a new school. the results are shown in the table below. which pair of samples seems most representative of student preference?