MULTIPLE CHOICE, SOLVE THIS INEQUALITY. BRAINLIEST FOR RIGHT ANSWER

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project