Select "equivalent" or "not equivalent" for each pair of expressions. Expressions
equivalent or not equivalent?
5x – 7 + 3x and 3x – 7 + 5x equivalent not equivalent
4y +9+ 3y and 3y + 9 + 4y equivalent not equivalent
62 – 2z + 4 and 4 + 2z – 6 equivalent not equivalent

You are updating your garage and the only thing left to paint is your garage day. you're only going to paint the slide that faces the street. the garage door is 9 fert 8inches tall and 120 inches wide. you need to know the surface area of the side of the garage door to determine how much paint to buy. the hardware store sells paint by how much covers a square foot. what is the surface area you should report to the hardware store what is the answer

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.