How would you write the number 421.5 in expanded form

Adding and subtracting matricesfind the value of each variable. x = and y = would

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

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