Two families went bowling. Each hour of bowling costs b dollars per person, plus a flat fee of $2 per person for shoe rental. The expression 3(b+2)+4(b+2) represents the total cost of both families to bowl for one hour. Choose the equivalent expression below.

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

Me asap on # : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.

What is the total surface area of this square pyramid?