Which expressions are equivalent? select equivalent or not equivalent for each pair of expressions. a)3(a−b) and 3a−3b equal or not b)2a(2+b) and 4ab equal or not

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

Mrs. blake's bill at a restaurant is $42.75. she wants to leave the waiter an 18% tip. how much will she pay in all, including the tip?

What are the factors of me - 12m + 20?