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If x=1/2 and y=2/3 , find the value of xy+ (x+ y)

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence

Agrain trader buys the following amounts from three suppliers: 3,200 pounds, 5,100 pounds and 700 pounds. what is the total weight of his purchase?

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin