What is 1 1/4 + ( 3 2/3 + 5 3/4)?

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?