Marla helped her mother and father fold invitations and put them into envelopes. If Marla can fill 36 envelopes in 30 minutes, how long will it take her to fill 48 envelopes? (Only enter a numerical answer)

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount

Which best explains why this triangle is or is not a right triangle ?