Using only addition what is 20 - 9 + 8 -7

Your best friend told you that last week scientists disco y that las vegas is responsible for abrupt climate changes. which do you think is best way to research that recent discovery? an encyclopedia usgs internet site a book in the library your best friend’s parents for your ! ❤️

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.

At the bulk food store, stacy bought 7 lbs of nuts. she used 8 ounces of nuts in a recipe and then put the rest of the nuts into small bags to use for snacks. if each small bag contains 4 ounces of nuts, how many small bags of nuts did stacy make? a, 26 b,24 c,19 d,15. show work first one , to you first user, okie welp