William bought k packs of 6 key rings. He divided the key rings into 2 equal piles. Now, he has 90 key rings in each pile. How many packs of key rings did William buy?

Find x & pleeeeaaaassseeee me !

Find the image of a(4, -2) after it is reflected over the line y= 2, then reflected over the line x = 2. (-8,6) o (0.-2) o (0,6) (-8, -2)

Billie holiday sells children's clothing for sara vaughn's toddler shop. baby blankets sell for $29.99 after a markup rate based on cost of 109%. find the cost and the markup.