In the typing world,80 words per minute is considered acceptable. how many words per 30 minutes is this

Every rhombus is a square. true false

With alll of except for the 2 that i did already

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.