Douglas says that the expression 5x-3x+2 and 2x+1) are not equivalent because of expression

Can someone me i’m confused. will give brainliest and a whole bunch of points

Jasmine wants to eat at 8: 00pm her meal takes 65mins to cook what time does she need to put the meal in the oven

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36