Can you estimate this for me 4,195 x 712

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42