Ineed with this algebraic expression: simplify: y2(4y+7n2+2)−3y2(−y+8)

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

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?

Pls never taught i’m really confused and i rlly need