Mrs. jackson bought 7 dozen eggs if each student is given the same out of eggs how many eggs are left

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

What is coefficient of the term of degree of degree 5 in the polynomial below

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?